Psychiatry

814 questions

Question 201Question →

A 24-year-old woman presents to the emergency department after sustaining superficial lacerations to her left forearm. Her roommate brought her in, stating the patient became deeply distraught after a man she had been dating for two weeks did not immediately reply to a text message. The patient tearfully explains she felt "completely hollow and abandoned." During the initial triage, the patient tells the nurse, "You are the only person who actually listens to me; everyone else here is heartless." Thirty minutes later, when the attending physician suggests a psychiatry consultation before discharge, the patient throws a cup of water at the wall and screams, "You are an incompetent, cruel doctor trying to lock me up!" The roommate notes that the patient has a history of impulsive spending sprees, frequent binge eating, and a chronically unstable mood. The patient is currently taking paroxetine for depressive symptoms. She asks the physician to prescribe tranylcypromine, stating that a friend takes it and it "works wonders for mood swings." The patient also mentions that during severe stress, she sometimes feels disconnected from her body and has transient thoughts that people are plotting against her, which typically resolve within a day.

Which of the following statements regarding the diagnosis and management of this patient are correct? (Select all that apply)

Select all that apply

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Answer: Dialectical behavior therapy is the most appropriate first-line psychotherapy to address the patient's underlying pathology.; The patient's alternating behavior of idealizing the triage nurse and devaluing the attending physician exemplifies the defense mechanism of splitting.

Answer

The correct statements are that dialectical behavior therapy is the first-line psychotherapy, and the patient's behavior exemplifies the defense mechanism of splitting.
The patient's presentation of affective instability, recurrent self-harm, chronic feelings of emptiness, and intense interpersonal relationships is classic for Borderline Personality Disorder (BPD). Dialectical behavior therapy (DBT) is the most effective, first-line psychotherapeutic intervention for BPD. Furthermore, her behavior of viewing the nurse as perfectly good and the physician as entirely bad exemplifies splitting, which is the hallmark defense mechanism used by patients with BPD to handle complex, conflicting emotions.

Step-by-Step Solution

1
Analyze the patient's clinical presentation.
The patient exhibits fears of abandonment, identity disturbance, impulsivity, recurrent self-harm, affective instability, and transient stress-related paranoia.
Identifying these clinical features is necessary to confirm the diagnosis of Borderline Personality Disorder (BPD).
2
Evaluate psychotherapy and defense mechanisms associated with the diagnosis.
Dialectical behavior therapy is identified as the gold-standard treatment, and the patient's dichotomous view of staff is recognized as splitting.
BPD management relies on specific targeted psychotherapies rather than medications, and splitting is its core defense mechanism.
3
Assess the incorrect distractors regarding pharmacology, diagnosis, and ethics.
Pharmacological combination of SSRIs and MAOIs is ruled out due to dangerous interactions; brief psychotic disorder is ruled out due to insufficient symptom duration; and confidentiality breaches are ruled out due to lack of an imminent threat.
Eliminating distractors ensures they violate specific medical and ethical standards.

Key Concept

Diagnosis of Borderline Personality Disorder, its primary defense mechanism (splitting), and its primary evidence-based treatment (dialectical behavior therapy).
Question 202Question →

A 34-year-old woman comes to the clinic reporting severe anxiety, recurrent nightmares, and profound fatigue. Six months ago, she was trapped in an elevator for several hours during a building fire. Since the event, she has experienced vivid, distressing nightmares about the fire, completely avoids elevators, and has an exaggerated startle response. She also reports feeling emotionally detached. Over the past three months, she has developed worsening fatigue, cold intolerance, and a 5 kg5\ \text{kg} (11 lb11\ \text{lb}) weight gain. Her past psychiatric history is significant for treatment-resistant depression, for which she takes phenelzine.

Physical examination reveals delayed relaxation of deep tendon reflexes.

Laboratory studies show:
Thyroid-stimulating hormone (TSH): 1.2 μU/mL1.2\ \mu\text{U/mL} (Normal: 0.4−4.0 μU/mL0.4-4.0\ \mu\text{U/mL})
Free thyroxine (T4): 0.5 ng/dL0.5\ \text{ng/dL} (Normal: 0.9−1.7 ng/dL0.9-1.7\ \text{ng/dL})

Which of the following are the most appropriate next steps in the management of this patient? (Select all that apply)

Select all that apply

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Answer: Trauma-focused cognitive-behavioral therapy; Magnetic resonance imaging of the pituitary gland

Answer

The most appropriate next steps are trauma-focused cognitive-behavioral therapy and magnetic resonance imaging of the pituitary gland.
The patient's clinical presentation is consistent with two distinct active conditions: Post-Traumatic Stress Disorder (PTSD) and central hypothyroidism. The trauma symptoms (recurrent nightmares, active avoidance, hyperarousal, and emotional detachment) have been present for six months, confirming a diagnosis of PTSD. Trauma-focused cognitive-behavioral therapy is a first-line, evidence-based treatment for PTSD. Concurrently, the patient's new-onset fatigue, cold intolerance, weight gain, and delayed deep tendon reflexes suggest clinical hypothyroidism. The laboratory findings of a low free T4 (0.5 ng/dL0.5\ \text{ng/dL}) coupled with an inappropriately normal TSH (1.2 μU/mL1.2\ \mu\text{U/mL}) firmly point to central (secondary) hypothyroidism rather than primary thyroid failure. The most appropriate next step in the workup of central hypothyroidism is magnetic resonance imaging (MRI) of the pituitary gland to evaluate for structural lesions (e.g., pituitary adenoma). Thus, both interventions are correct next steps in managing her complex presentation.

Step-by-Step Solution

1
Identify the psychiatric diagnosis based on the clinical history.
The patient has Post-Traumatic Stress Disorder (PTSD) triggered by the fire, characterized by nightmares, avoidance, hypervigilance, and emotional numbing lasting greater than one month.
Accurate diagnosis of the psychiatric condition is required to select the appropriate evidence-based psychotherapy.
2
Interpret the laboratory findings in the context of the new systemic symptoms.
The patient has a low free T4 level with an inappropriately normal TSH level, which indicates central (secondary) hypothyroidism rather than primary hypothyroidism.
Primary hypothyroidism would present with an elevated TSH in response to low T4 due to intact negative feedback mechanisms.
3
Determine the appropriate management strategies for the concurrent conditions.
Trauma-focused CBT is indicated for the PTSD. Magnetic resonance imaging (MRI) of the pituitary is indicated to investigate the cause of the central hypothyroidism.
Addressing both the acute psychiatric condition and the underlying endocrine abnormality is standard of care.
4
Identify contraindicated pharmacological interventions.
Adding an SSRI or SNRI to the patient's current monoamine oxidase inhibitor (MAOI), or switching without a 14-day washout, must be avoided.
Concurrent use or rapid cross-tapering of these agents risks precipitating life-threatening serotonin syndrome.

Key Concept

The management of severe psychiatric presentations requires treating the primary psychiatric disorder (e.g., trauma-focused psychotherapy for PTSD), avoiding dangerous drug interactions (e.g., MAOI and SSRI/SNRI combinations), and correctly interpreting diagnostic tests for concurrent systemic symptoms (e.g., differentiating central from primary hypothyroidism).
Question 203Question →

A 72-year-old man is brought to the clinic by his wife due to a 1-year history of progressive memory decline. She reports that his cognitive abilities fluctuate significantly; on some days he is highly alert, while on other days he is deeply confused. Over the past 6 months, he has frequently reported seeing small animals in their living room, even though none are present. Additionally, his sleep is highly disturbed; he often yells and physically thrashes in bed, appearing to act out his dreams. On physical examination, the patient has a shuffling gait, a resting tremor in his right hand, and mild cogwheel rigidity. Laboratory studies reveal a thyroid-stimulating hormone (TSH) level of 2.1 µU/mL (normal: 0.4-4.0 µU/mL) and a normal vitamin B12 level. Which of the following is the most likely diagnosis?

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Answer: Dementia with Lewy bodies

Answer

Dementia with Lewy bodies
The correct answer is Dementia with Lewy bodies. This neurodegenerative disorder is characterized by a progressive cognitive decline accompanied by distinctive core clinical features. A probable diagnosis requires the presence of dementia and at least two of the following: fluctuating cognition with pronounced variations in attention and alertness, recurrent visual hallucinations that are typically well-formed and detailed, rapid eye movement (REM) sleep behavior disorder (acting out dreams), and spontaneous features of parkinsonism (e.g., shuffling gait, resting tremor, rigidity). This patient's presentation fits perfectly with all of these classic clinical hallmarks.

Step-by-Step Solution

1
Analyze the patient's primary symptoms and timeline.
The patient has a 1-year history of cognitive decline with marked fluctuations, recurrent visual hallucinations, REM sleep behavior disorder, and parkinsonism.
Identifying the specific combination of cognitive, psychiatric, and motor symptoms is necessary to differentiate among the neurocognitive disorders.
2
Evaluate the laboratory results.
TSH and Vitamin B12 are normal.
This rules out common reversible causes of dementia and psychosis in the elderly.
3
Match the clinical presentation to the diagnostic criteria.
The symptom profile perfectly matches the core diagnostic criteria for Dementia with Lewy bodies.
Dementia with Lewy bodies requires dementia plus two or more core features: visual hallucinations, parkinsonism, REM sleep behavior disorder, and fluctuating cognition.

Key Concept

Diagnosis of Dementia with Lewy bodies based on its core clinical features.
Question 204Question →

A 24-year-old man is brought to the clinic by his mother for a general checkup. He tells the physician that he feels nervous around other people because he can sense their "negative auras." He spends most of his time alone in his room studying astrology and believes that he can predict the weather by reading tea leaves. The mother reports that he has always been a "loner" with odd beliefs since early adolescence. He has never experienced auditory or visual hallucinations, and his thought processes are organized. He does not have any history of major depressive or manic episodes. Which of the following is the most likely diagnosis?

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Answer: Schizotypal personality disorder

Answer

Schizotypal personality disorder
The patient's presentation of lifelong social isolation, odd beliefs, magical thinking (predicting weather with tea leaves), and eccentric behavior without frank psychosis is highly characteristic of Schizotypal personality disorder. This Cluster A personality disorder is marked by a pervasive pattern of acute discomfort with close relationships alongside prominent cognitive or perceptual distortions.

Step-by-Step Solution

1
Identify the core clinical features in the patient's presentation.
The patient exhibits magical thinking (sensing auras, reading tea leaves), social anxiety, and eccentric behavior without frank hallucinations or delusions.
Recognizing the constellation of symptoms is the foundational step in forming a psychiatric differential diagnosis.
2
Evaluate the chronicity and severity of the psychiatric symptoms.
The symptoms have been present since adolescence as a lifelong pattern and do not cross the threshold into frank psychosis.
Personality disorders are characterized by long-standing, pervasive patterns, which helps distinguish them from acute psychotic disorders like schizophrenia.
3
Differentiate between Cluster A personality disorders and related conditions.
Schizoid personality disorder lacks magical thinking; avoidant personality disorder involves a desire for relationships. Schizotypal personality disorder perfectly matches the odd beliefs and magical thinking seen here.
Cluster A disorders often share features of social detachment but are distinguished by specific cardinal features like eccentric beliefs.

Key Concept

Schizotypal personality disorder is characterized by a pervasive pattern of social and interpersonal deficits, cognitive or perceptual distortions (such as magical thinking), and eccentricities of behavior, typically presenting by early adulthood.
Question 205Question →

Match each pharmacological agent used in psychiatric practice with its characteristic adverse effect profile or specific clinical warning regarding its use in bipolar disorder.

Click a left item, then click its matching right item

Items

Lithium
Valproate
Quetiapine
Sertraline

Matches

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Answer

Lithium pairs with renal/thyroid monitoring; Valproate pairs with hepatotoxicity and neural tube defects; Quetiapine pairs with metabolic syndrome monitoring; Sertraline pairs with the risk of precipitating a manic switch.
Each medication plays a specific role in psychiatric care and has a uniquely identifiable risk profile. Lithium affects the kidneys and thyroid. Valproate affects the liver and platelets, and is teratogenic. Quetiapine causes metabolic derangements. Sertraline, while an effective antidepressant, can dangerously precipitate mania in bipolar patients.

Step-by-Step Solution

1
Evaluate the specific organ toxicity and monitoring requirements for the classic mood stabilizers.
Lithium requires renal (creatinine) and thyroid (TSH) monitoring. Valproate requires hepatic function and platelet monitoring, and carries neural tube defect risks.
Mood stabilizers have distinct pharmacokinetic pathways and long-term toxicity profiles that are highly tested core concepts.
2
Identify the primary adverse effects of second-generation antipsychotics used in bipolar disorder.
Quetiapine is strongly linked to weight gain, dyslipidemia, and hyperglycemia.
Atypical antipsychotics are central to bipolar treatment, but their metabolic effects necessitate strict longitudinal monitoring.
3
Determine the clinical consequence of using unopposed antidepressants in a patient with bipolar disorder.
Sertraline (an SSRI) can induce a manic switch if given without a concurrent mood stabilizer.
Antidepressant monotherapy is a classic prescribing error in patients with bipolar depression.

Key Concept

Pharmacological management of bipolar disorder: adverse effects, monitoring guidelines, and contraindications.
Question 206Question →

A 31-year-old male accountant presents to the clinic for an urgent follow-up appointment. He initially presented two weeks ago with a one-month history of severe sadness, hypersomnia, and profound anhedonia. At that time, he was diagnosed with a major depressive episode and prescribed fluoxetine. Today, he reports that his mood has not improved, but he now feels "extremely irritable, wired, and completely unable to sit still." His physical examination is notable for rapid, pressured speech and psychomotor agitation. Upon detailed psychiatric review, the patient admits that he experienced a similar "wired" state twice in his twenties. During those episodes, which each lasted approximately ten days, he required only two hours of sleep per night and impulsively spent thousands of dollars on unneeded electronics. He has no significant past medical history and denies any illicit substance use. Which of the following is the most appropriate next step in management?

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Answer: Discontinue the fluoxetine and initiate treatment with a mood stabilizer such as quetiapine

Answer

The most appropriate next step is to discontinue the selective serotonin reuptake inhibitor (fluoxetine) and initiate treatment with a mood stabilizer or atypical antipsychotic (such as quetiapine).
The patient's history of episodes involving decreased sleep, impulsivity, and a "wired" state lasting approximately 10 days confirms a diagnosis of Bipolar I Disorder. His initial presentation of a depressive episode was misdiagnosed as unipolar major depressive disorder. Initiating fluoxetine (an SSRI) as monotherapy in a patient with bipolar disorder has precipitated a manic switch, characterized by his current pressured speech, irritability, and psychomotor agitation. The most critical next step is to immediately discontinue the offending antidepressant and initiate an appropriate treatment for bipolar depression, such as the atypical antipsychotic quetiapine.

Step-by-Step Solution

1
Identify the patient's initial diagnosis and current presentation.
The patient was initially diagnosed with major depressive disorder and given an SSRI. He now presents with agitation, irritability, and pressured speech.
Tracking the timeline of symptoms relative to medication initiation is critical for identifying adverse drug effects.
2
Analyze the newly obtained psychiatric history.
The patient has a history of distinct episodes lasting at least 7 days characterized by decreased need for sleep, impulsivity, and euphoric/wired mood.
These historical symptoms meet the DSM-5 criteria for past manic episodes, changing the baseline diagnosis from unipolar depression to Bipolar I Disorder.
3
Determine the etiology of the current acute symptoms.
The current agitation and pressured speech represent a manic switch or severe activation syndrome triggered by antidepressant monotherapy in a patient with bipolar disorder.
Selective serotonin reuptake inhibitors can precipitate manic episodes in patients with underlying bipolar disorder.
4
Select the appropriate pharmacological intervention.
The offending agent (fluoxetine) must be discontinued, and an appropriate medication for bipolar depression (e.g., quetiapine, lurasidone, or lithium) must be started.
Antidepressant monotherapy is contraindicated in Bipolar I Disorder. Mood stabilizers or specific atypical antipsychotics are the standard of care.

Key Concept

Patients presenting with depressive symptoms must be screened for a history of mania or hypomania prior to initiating antidepressant monotherapy to prevent precipitating a manic switch.
Question 207Question →

Match each clinical presentation to the most likely personality disorder diagnosis.

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Items

A 41-year-old executive consistently interrupts colleagues, demands immediate attention from staff, and expresses frustration that his 'unique talents' are unappreciated by leadership.
A 52-year-old accountant frequently accuses neighbors of plotting against him, questions his spouse's fidelity without evidence, and refuses to share basic medical information with physicians.
A 31-year-old developer longs for companionship but declines all social invitations, fearing intense scrutiny and believing colleagues will find him completely unappealing.
A 19-year-old student wears eccentric, mismatched clothing in summer, claims to predict the future via telepathy, and lacks close friends outside his immediate family.

Matches

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Answer

The correct matches align the executive with Narcissistic personality disorder, the accountant with Paranoid personality disorder, the developer with Avoidant personality disorder, and the student with Schizotypal personality disorder.
Each clinical vignette is uniquely designed to highlight the textbook diagnostic criteria of a specific personality disorder according to DSM-5, relying on core features: grandiosity (Narcissistic), distrust (Paranoid), fear of rejection (Avoidant), and magical thinking (Schizotypal).

Step-by-Step Solution

1
Identify the core behavioral pattern of the 41-year-old executive.
The traits of entitlement, superiority, and demand for admiration point directly to Narcissistic personality disorder.
Recognizing Cluster B traits of grandiosity differentiates this from other disorders.
2
Identify the core behavioral pattern of the 52-year-old accountant.
The unfounded suspicions, mistrust of others, and guardedness are classic for Paranoid personality disorder.
Recognizing Cluster A traits of distrust distinguishes it from delusional disorder, as the suspicions are pervasive rather than a single fixed delusion.
3
Identify the core behavioral pattern of the 31-year-old developer.
The intense fear of rejection and feelings of inadequacy despite a desire for connection point to Avoidant personality disorder.
This cluster C trait differentiates Avoidant personality disorder from Schizoid personality disorder, where the patient genuinely does not desire relationships.
4
Identify the core behavioral pattern of the 19-year-old student.
The magical thinking, eccentric appearance, and interpersonal deficits match Schizotypal personality disorder.
Recognizing Cluster A odd/eccentric traits combined with cognitive distortions confirms the diagnosis without the frank psychosis seen in schizophrenia.

Key Concept

Identifying hallmark clinical features of personality disorders across Clusters A, B, and C.
Estimated Time:1m 30s
Question 208Question →

A 22-year-old law student schedules an appointment at the university health center due to severe distress regarding his upcoming moot court arguments. He explains that whenever he has to speak in front of a panel of judges, he experiences intense palpitations, a prominent hand tremor, and a trembling voice. These symptoms begin roughly 30 minutes before he is scheduled to speak and severely impair his performance. He does not experience this anxiety during written exams, while studying in groups, or in everyday social interactions. He is otherwise healthy, exercises regularly, and takes no daily medications. His pulse is 78/min and blood pressure is 118/76 mm Hg. Which of the following is the most appropriate initial pharmacotherapy to manage this patient's symptoms?

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Answer: Propranolol

Answer

Propranolol
The patient's presentation is highly characteristic of social anxiety disorder (SAD), performance-only specifier. This condition involves intense fear and physiologic arousal specifically linked to public speaking or performing. The most appropriate initial pharmacotherapy for performance-only SAD is an as-needed beta-blocker, such as propranolol, taken 30 to 60 minutes before the stressful event. Beta-blockers effectively blunt the peripheral autonomic symptoms of anxiety, such as tachycardia and tremor, without causing cognitive impairment.

Step-by-Step Solution

1
Analyze the clinical presentation.
The patient experiences intense autonomic anxiety symptoms (tremor, palpitations) exclusively triggered by public speaking, without generalized social fears.
To establish the diagnosis of Social Anxiety Disorder, performance-only specifier.
2
Determine the treatment goals for performance-only anxiety.
The goal is to suppress peripheral autonomic arousal on an as-needed basis without impairing the patient's cognitive sharpness during the performance.
To select the most appropriate pharmacological class.
3
Identify the standard first-line medication.
Beta-blockers (like propranolol) administered 30-60 minutes before the event are the standard of care.
They effectively block beta-adrenergic receptors, stopping tremor and tachycardia, while leaving cognitive function intact.

Key Concept

The first-line pharmacologic treatment for performance-only Social Anxiety Disorder is an as-needed beta-blocker (e.g., propranolol).
Estimated Time:45s
Question 209Question →

A 42-year-old male architect is brought to his primary care physician by his husband due to a 2-month history of severe depressed mood, excessive guilt, and terminal insomnia. The patient states that he has completely lost interest in his architectural projects, feels like a burden to his family, and has lost 6.8 kg (15 lb) over this period. His medical history is significant for primary hypothyroidism, which has been well-controlled on levothyroxine. Review of his past medical records reveals a prior psychiatric admission at age 26 after he spent his entire life savings on a spontaneous trip to Europe, during which he believed he was a prophet destined to unite the world. He was treated with an unknown medication and stabilized but stopped all psychiatric care a year later. His current vital signs are stable. Physical examination is unremarkable. Mental status examination reveals a disheveled appearance, marked psychomotor retardation, flat affect, and poverty of speech. He denies current suicidal ideation or auditory hallucinations. Laboratory testing demonstrates a thyroid-stimulating hormone (TSH) level of 1.8 µU/mL (normal: 0.5-5.0 µU/mL) and a free thyroxine (T4) level of 1.3 ng/dL (normal: 0.9-1.7 ng/dL). Which of the following is the most appropriate next step in pharmacotherapy?

Show answer & explanation

Answer: Prescribe lurasidone

Answer

Prescribe lurasidone
This patient presents with a severe major depressive episode (depressed mood, anhedonia, weight loss, terminal insomnia, guilt, psychomotor retardation). Crucially, his history of a severe mood episode at age 26 involving reckless spending, delusions of being a prophet, and hospitalization is diagnostic of a manic episode with psychotic features. Therefore, his correct diagnosis is bipolar I disorder, currently in a depressed episode. The first-line pharmacological treatment for acute bipolar depression includes specific second-generation antipsychotics, notably lurasidone, quetiapine, or cariprazine. Lurasidone is highly effective for bipolar depression and has a favorable metabolic profile. Antidepressant monotherapy must be avoided due to the high risk of precipitating mania.

Step-by-Step Solution

1
Identify the patient's current clinical presentation.
The patient is experiencing a major depressive episode, characterized by a 2-month history of depressed mood, anhedonia, significant weight loss, terminal insomnia, guilt, and psychomotor retardation.
Establishing the current mood episode is necessary to guide acute management.
2
Review the patient's past psychiatric and medical history.
The patient has a history of an episode at age 26 involving grandiosity, delusions, impulsive spending, and hospitalization, which meets the criteria for a manic episode with psychotic features. His thyroid function tests are currently normal.
A history of mania changes the diagnosis from major depressive disorder to bipolar I disorder, fundamentally altering the treatment algorithm. Normal thyroid labs rule out a medical cause for his depression.
3
Determine the most appropriate pharmacotherapy for acute bipolar depression.
First-line monotherapy options for bipolar depression include lurasidone, quetiapine, and cariprazine.
These atypical antipsychotics treat depressive symptoms in bipolar disorder without carrying the risk of precipitating a manic switch, unlike standard antidepressant monotherapy.

Key Concept

The diagnosis of bipolar I disorder requires a history of at least one manic episode; current depressive episodes must be treated with specific atypical antipsychotics (e.g., lurasidone, quetiapine, cariprazine) or mood stabilizers while avoiding antidepressant monotherapy.
Question 210Question →

An outpatient psychiatric evaluation is requested for a 31-year-old female software developer who reports feeling 'empty and constantly on edge.' The patient states that she has struggled with intense, unstable interpersonal relationships since late adolescence, often fluctuating between idealized infatuation and extreme devaluation of her partners. She exhibits the defense mechanism of splitting, explicitly categorizing her current treatment team as 'the only ones who actually care' and her previous providers as 'malicious and incompetent.' Her history is notable for recurrent non-suicidal self-injury via superficial skin cutting following perceived abandonments. Over the past week, following a severe conflict with her roommate, she has experienced transient, stress-induced auditory hallucinations of a voice whispering her name. Furthermore, she describes short-lived periods of profound depressive symptoms interspersed with significant irritability and impulsive spending. She is currently prescribed paroxetine for anxiety. During the interview, she mentions having found a bottle of phenelzine in her mother's medicine cabinet and asks if she should start taking it alongside her paroxetine for 'extra help.' She also expresses intense anger toward her roommate, vaguely stating she would 'love to see her get hit by a bus,' but when assessed further, she denies any actual plan or intent to harm her. Which of the following is the most appropriate management strategy for this patient?

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Answer: Acknowledge her distress, delineate strict therapeutic boundaries, advise against the monoamine oxidase inhibitor, and refer the patient for dialectical behavior therapy

Answer

The correct approach is to acknowledge her distress, delineate strict therapeutic boundaries, advise against taking the monoamine oxidase inhibitor, and refer the patient for dialectical behavior therapy.
The patient's presentation of unstable relationships, chronic emptiness, idealization/devaluation (splitting), non-suicidal self-injury, and transient stress-related paranoia strongly indicates borderline personality disorder (BPD). The cornerstone of management for BPD involves establishing clear, consistent physician-patient boundaries and referring the patient for dialectical behavior therapy (DBT), an evidence-based psychotherapy specifically designed to target emotional dysregulation and self-harm behaviors. Furthermore, the physician must explicitly advise against taking phenelzine (an MAOI) while on paroxetine (an SSRI) to prevent a life-threatening drug interaction.

Step-by-Step Solution

1
Analyze the patient's clinical presentation, including the pattern of unstable relationships, splitting, chronic emptiness, and self-injury.
These features fulfill the DSM-5 criteria for borderline personality disorder.
Accurate diagnosis is the critical first step before determining the appropriate therapeutic intervention.
2
Evaluate the transient auditory hallucinations and affective instability in the context of her stress.
Determine that these are stress-related features of borderline personality disorder rather than primary schizophrenia or bipolar disorder.
Differentiating overlapping symptoms (e.g., psychosis vs. stress-induced micro-psychosis) prevents inappropriate pharmacological treatment.
3
Assess the risk associated with her statement about her roommate and her proposed medication change.
Conclude that there is no imminent threat warranting a breach of confidentiality, but there is a severe risk of serotonin syndrome if paroxetine and phenelzine are combined.
Ensuring patient and public safety requires correctly applying ethical guidelines and pharmacological principles.
4
Select the most appropriate evidence-based management strategy for the primary diagnosis.
Establish clear boundaries, advise against the dangerous medication combination, and refer for dialectical behavior therapy.
Dialectical behavior therapy is the first-line treatment for borderline personality disorder, and maintaining consistent boundaries prevents therapeutic rupture due to splitting.

Key Concept

The first-line management for borderline personality disorder involves dialectical behavior therapy and the establishment of consistent physician-patient boundaries, alongside careful pharmacological management to avoid adverse drug interactions.
Question 211Question →

A 28-year-old woman is evaluated in the outpatient psychiatric clinic for maintenance pharmacotherapy following a recent hospitalization for an acute manic episode. Her past psychiatric history includes two prior episodes of major depression. Physical examination is unremarkable, and on mental status examination, her mood is euthymic with normal speech and thought processes. The physician discusses several medication options, emphasizing the importance of specific baseline laboratory testing, adverse effect profiles, and appropriate prescribing practices in bipolar disorder. Match each psychotropic intervention with its characteristic adverse effect profile, required monitoring, or primary clinical risk.

Click a left item, then click its matching right item

Items

Lithium
Valproate
Lamotrigine
Sertraline monotherapy

Matches

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Answer

Lithium matches with thyroid/renal monitoring; Valproate matches with liver/CBC monitoring; Lamotrigine matches with slow titration for rash risk; Sertraline monotherapy matches with the risk of precipitating acute mania.
Effective pharmacotherapy for bipolar disorder requires careful selection and monitoring of medications. Lithium necessitates renal and thyroid monitoring due to risks of nephropathy and hypothyroidism. Valproate requires hepatic and hematologic monitoring due to risks of hepatotoxicity and thrombocytopenia. Lamotrigine requires slow dose titration to avoid life-threatening Stevens-Johnson syndrome. Crucially, SSRI monotherapy (like sertraline) is contraindicated in bipolar disorder as it can precipitate manic episodes.

Step-by-Step Solution

1
Identify the primary risk of using antidepressant monotherapy (Sertraline) in bipolar disorder.
It carries a high risk of precipitating mania.
Antidepressants without concurrent mood stabilizers can cause mood destabilization in bipolar patients.
2
Determine the baseline monitoring for Lithium.
Baseline TSH and renal function (BUN/creatinine) are needed.
Lithium is associated with hypothyroidism and renal toxicity (tubulointerstitial nephropathy).
3
Determine the baseline monitoring for Valproate.
Baseline LFTs and CBC are needed.
Valproate carries risks of severe hepatotoxicity, pancreatitis, and thrombocytopenia.
4
Determine the monitoring for Lamotrigine.
No specific routine labs, but very slow titration is required.
Lamotrigine is associated with a risk of Stevens-Johnson syndrome, which is dose-dependent.

Key Concept

Pharmacologic management of bipolar disorder, including baseline monitoring for mood stabilizers and the contraindication of antidepressant monotherapy.
Question 212Question →

A 62-year-old man comes to the cardiology clinic for a routine follow-up 6 weeks after being hospitalized for an acute anterior wall myocardial infarction, for which he received a drug-eluting stent. His cardiac function has stabilized, and he is compliant with his medication regimen, which includes aspirin, clopidogrel, metoprolol, lisinopril, and atorvastatin. Today, his wife expresses deep concern about his emotional well-being since discharge. The patient states, 'My life is basically over. I am just a burden to my family now, and there is no point in going on.' He reports a 10-lb (4.5-kg) weight loss due to poor appetite and says he wakes up every day at 3:00 AM unable to fall back asleep. He admits to recurrent thoughts that his family would be better off if he were dead, though he lacks a specific suicide plan. His physical examination is unremarkable, and an electrocardiogram shows normal sinus rhythm with a QTc interval of 420 ms. Which of the following is the most appropriate next step in the pharmacologic management of this patient?

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Answer: Initiate sertraline

Answer

Initiate sertraline
The correct answer is to initiate sertraline. This patient is presenting with a severe episode of major depressive disorder (MDD) following a myocardial infarction (MI), a condition that independently increases cardiovascular mortality risk. Selective serotonin reuptake inhibitors (SSRIs) are the first-line treatment. Among the SSRIs, sertraline and escitalopram are considered the safest and most efficacious choices for patients with ischemic heart disease, as established by the SADHART trial. Furthermore, sertraline has minimal inhibitory effects on cytochrome P450 enzymes. This is crucial because the patient is taking clopidogrel, a prodrug that requires activation by the hepatic enzyme CYP2C19. Sertraline will not interfere with this activation, ensuring the patient's dual antiplatelet therapy remains effective.

Step-by-Step Solution

1
Diagnose the patient's psychiatric condition based on the clinical presentation.
The patient meets criteria for Major Depressive Disorder (MDD) with melancholic features (depressed mood, guilt, significant weight loss, early morning awakening, and passive suicidal ideation lasting longer than 2 weeks).
Establishing the correct psychiatric diagnosis is required to determine the indication for pharmacotherapy.
2
Evaluate the patient's medical history and current medication regimen for potential contraindications.
The patient is 62 years old, 6 weeks post-myocardial infarction with a recent stent, and is taking dual antiplatelet therapy (aspirin and clopidogrel).
Medical comorbidities and concurrent medications dictate the safety profile required for the chosen psychotropic agent.
3
Select the most appropriate antidepressant that lacks adverse cardiovascular effects and avoids dangerous drug-drug interactions.
Sertraline is selected because it has a proven cardiovascular safety profile in post-MI patients and minimally inhibits CYP450 enzymes.
Other agents carry risks of QT prolongation (high-dose citalopram), arrhythmias (TCAs), hypertension (SNRIs), or dangerous CYP2C19 inhibition preventing clopidogrel activation (fluoxetine).

Key Concept

Pharmacologic management of major depressive disorder in patients with recent myocardial infarction and concurrent cardiovascular medications.
Estimated Time:1m 30s
Question 213Question →

Select the most accurate personality disorder diagnosis for each described patient presentation.

Click a left item, then click its matching right item

Items

A middle school teacher meticulously logs every minor classroom rule infraction in a complex, color-coded spreadsheet but consistently fails to complete her actual grading on time due to an obsession with perfect formatting.
A data analyst works exclusively overnight shifts, eats meals alone in his car, and expresses genuine bewilderment when colleagues invite him to after-work gatherings, stating he finds no pleasure or purpose in companionship.
A successful attorney routinely humiliates her paralegals, insists on having the largest office despite her junior status, and appears entirely oblivious to the distress she causes when mocking her coworkers' attire.
A freelance artist repeatedly turns down lucrative full-time agency positions despite financial struggles, confiding in his physician that he is absolutely terrified of being scrutinized, criticized, or rejected by a creative director.

Matches

Show answer & explanation

Answer

The teacher is matched with Obsessive-Compulsive Personality Disorder, the data analyst with Schizoid Personality Disorder, the attorney with Narcissistic Personality Disorder, and the artist with Avoidant Personality Disorder.
Each clinical vignette highlights the quintessential features of a specific personality disorder. Obsessive-Compulsive Personality Disorder is marked by task-impairing perfectionism. Schizoid Personality Disorder is defined by an innate lack of desire for social connection. Narcissistic Personality Disorder is characterized by grandiosity and lack of empathy. Avoidant Personality Disorder is defined by extreme sensitivity to rejection leading to social withdrawal despite an underlying desire for connection.

Step-by-Step Solution

1
Analyze the middle school teacher's presentation.
Identified extreme perfectionism, orderliness, and rigidity that directly impairs task completion.
These are the hallmark criteria for Obsessive-Compulsive Personality Disorder, distinguishing it from healthy conscientiousness or general perfectionism.
2
Analyze the data analyst's presentation.
Identified a complete lack of desire for relationships, preference for solitary activities, and social detachment.
This pattern isolates the diagnosis to Schizoid Personality Disorder, ruling out anxiety-driven isolation.
3
Analyze the attorney's presentation.
Identified grandiosity, lack of empathy, entitlement, and exploitative/arrogant interpersonal behavior.
These are the core diagnostic features of Narcissistic Personality Disorder.
4
Analyze the artist's presentation.
Identified occupational avoidance driven purely by an intense fear of negative evaluation and rejection.
This distinguishes Avoidant Personality Disorder, as the isolation is driven by deep-seated anxiety and feelings of inadequacy rather than a lack of interest in socializing.

Key Concept

Differentiating personality disorders based on core interpersonal dynamics, defense mechanisms, and ego-syntonic behavioral patterns.
Question 214Question →

A 41-year-old man is brought to the clinic by his wife due to severe anhedonia, feelings of worthlessness, and hypersomnia lasting for the past six weeks. He has a past medical history of obesity (BMI 36 kg/m²), poorly controlled type 2 diabetes mellitus, and essential hypertension. His current daily medications are metformin, valsartan, and indapamide. His wife reports that three years ago, he experienced a distinct three-week period where he slept only two hours per night, spoke incessantly, and exhibited grandiosity, claiming he was a covert operative for a secret intelligence agency. That episode resolved without psychiatric intervention, and he has taken no psychotropic medications since. Mental status examination reveals psychomotor slowing, poor eye contact, and a severely depressed mood, but no current delusions or hallucinations. Which of the following is the most appropriate next step in pharmacologic management?

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Answer: Initiate cariprazine therapy

Answer

Initiate cariprazine therapy
The correct answer is to initiate cariprazine therapy. This patient presents with an acute depressive episode but has a clear history of a manic episode with psychotic features (grandiosity, decreased need for sleep, rapid speech), making the diagnosis Bipolar I disorder. The treatment of acute bipolar depression requires mood stabilizers or specific second-generation antipsychotics. While lithium is a classic first-line agent, this patient is taking valsartan (an angiotensin II receptor blocker) and indapamide (a thiazide-like diuretic). Both classes of drugs dramatically reduce the renal clearance of lithium, creating a severe risk for fatal lithium toxicity; therefore, lithium should be strictly avoided or would require highly specialized dosage adjustments. Furthermore, the patient's comorbid obesity and type 2 diabetes mellitus make metabolically adverse atypical antipsychotics (such as olanzapine or quetiapine) less favorable. Cariprazine and lurasidone are FDA-approved for bipolar depression, have highly favorable metabolic profiles, and do not have dangerous pharmacokinetic interactions with the patient's antihypertensive regimen.

Step-by-Step Solution

1
Identify the primary psychiatric diagnosis.
The patient has Bipolar I disorder, currently in a severe depressive episode, based on his current symptoms and a past history of a manic episode with psychotic features.
Accurate diagnosis is required to avoid prescribing antidepressant monotherapy, which can trigger a manic switch.
2
Evaluate the patient's medical comorbidities.
The patient has severe obesity and type 2 diabetes mellitus.
These comorbidities contraindicate the use of metabolically adverse atypical antipsychotics (like olanzapine or quetiapine) for bipolar depression.
3
Evaluate for potential drug-drug interactions with current medications.
The patient takes valsartan (an ARB) and indapamide (a thiazide-like diuretic).
Both ARBs and thiazide diuretics significantly decrease renal clearance of lithium, making lithium carbonate a highly dangerous choice due to the risk of fatal toxicity.
4
Select the optimal pharmacotherapy.
Cariprazine is the safest and most effective option.
Cariprazine is FDA-approved for bipolar depression, does not interact dangerously with his antihypertensives, and is metabolically neutral.

Key Concept

Management of acute bipolar depression with medical comorbidities and preventing adverse drug interactions
Question 215Question →

A 34-year-old woman comes to the clinic reporting a 6-week history of pervasive sadness, frequent tearfulness, and profound fatigue. She states that her arms and legs feel "like they are made of lead" and she is sleeping up to 14 hours a day. She feels immense guilt about being an inadequate mother to her 4-month-old infant, whom she is exclusively breastfeeding. Three years ago, the patient was prescribed paroxetine for generalized anxiety. Two weeks after starting the medication, she became unusually energetic, slept only 2 hours a night without feeling tired, and began making impulsive, large investments in cryptocurrency, which depleted her savings. The paroxetine was immediately discontinued, but her hyperactive and grandiose state persisted for another 5 weeks before gradually resolving. She has not taken any psychiatric medications since that time. Vital signs and physical examination are unremarkable. Which of the following is the most appropriate pharmacotherapy for this patient's current symptoms?

Show answer & explanation

Answer: Initiate quetiapine therapy

Answer

Initiate quetiapine therapy
The patient's current presentation of a major depressive episode with atypical features must be viewed in the context of her psychiatric history. She previously experienced a full manic episode while on paroxetine. Crucially, the mania persisted for 5 weeks after paroxetine cessation. According to DSM-5 criteria, a manic episode that emerges during antidepressant treatment but persists at a fully syndromal level beyond the physiological effect of that drug constitutes a true manic episode, establishing a diagnosis of Bipolar I Disorder. Consequently, her current state is acute bipolar depression. Antidepressant monotherapy is contraindicated. Second-generation antipsychotics like quetiapine are first-line for bipolar depression. Furthermore, because she is exclusively breastfeeding, quetiapine is an ideal choice due to its very low excretion into breast milk, whereas other agents like lithium carry high risks of infant toxicity.

Step-by-Step Solution

1
Analyze the current clinical presentation.
The patient is experiencing a major depressive episode with atypical features (hypersomnia, leaden paralysis) occurring 4 months postpartum.
Establishing the current syndrome is the first step in guiding psychiatric management.
2
Evaluate the past psychiatric history for exclusionary criteria.
Three years ago, she had a full manic episode (decreased sleep, grandiosity, impulsivity) triggered by paroxetine.
A history of mania completely changes the management of a depressive episode by shifting the diagnosis from Major Depressive Disorder to a Bipolar Disorder.
3
Apply DSM-5 duration rules for medication-induced symptoms.
Because the manic symptoms persisted for 5 weeks after the short-acting paroxetine was discontinued, they extended beyond the physiological effect of the drug.
A manic episode persisting beyond the physiological effect of an antidepressant establishes a diagnosis of true Bipolar I Disorder, rather than just medication-induced mania.
4
Determine the appropriate class of medication for the current episode.
The patient requires treatment for acute bipolar depression. Antidepressant monotherapy must be avoided to prevent a manic switch.
Treating bipolar depression requires mood stabilizers or specific atypical antipsychotics, not standard SSRIs/SNRIs alone.
5
Filter suitable medications based on the patient's lactation status.
Lithium poses toxicity risks to the infant. Quetiapine is efficacious for bipolar depression and safe during breastfeeding.
The patient is exclusively breastfeeding, mandating a medication with low breast milk transfer and known neonatal safety.

Key Concept

Differentiation of Bipolar I Disorder from unipolar depression based on historical antidepressant-induced mania, and selection of safe bipolar pharmacotherapy during lactation.
Estimated Time:2m 0s
Question 216Question →

Match the following clinical presentations to the most appropriate psychiatric diagnosis based on DSM-5 criteria.

Click a left item, then click its matching right item

Items

A 25-year-old woman experiences intrusive memories and avoidance of vehicles 2 weeks after surviving a severe car crash.
A 32-year-old man reports excessive, uncontrollable worry about his health, finances, and job performance occurring most days for the past 8 months.
A 28-year-old woman experiences intense fear, palpitations, and shortness of breath exclusively when encountering spiders; this has been present since childhood.
A 40-year-old combat veteran reports hypervigilance, emotional numbing, and nightmares for the past 2 years since returning from deployment.

Matches

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Answer

Match the 2-week trauma symptoms to acute stress disorder, the 8-month multiple-domain worry to generalized anxiety disorder, the childhood spider fear to specific phobia, and the 2-year trauma symptoms to post-traumatic stress disorder.
Each diagnosis has specific criteria based on symptom duration and trigger. Acute stress disorder requires trauma symptoms lasting between 3 days and 1 month. Post-traumatic stress disorder requires trauma symptoms persisting for more than 1 month. Generalized anxiety disorder requires excessive worry about multiple issues for at least 6 months. Specific phobia requires a marked, disproportionate fear of a specific object or situation.

Step-by-Step Solution

1
Analyze the presentation involving the car crash survivor.
The trauma symptoms have only been present for 2 weeks.
Differentiating acute stress disorder from post-traumatic stress disorder requires checking the 1-month threshold.
2
Analyze the presentation involving the man with multiple worries.
He has non-specific, widespread worry for over 6 months.
Excessive worry across multiple domains meeting the 6-month timeline confirms generalized anxiety disorder.
3
Analyze the presentation involving the fear of spiders.
The anxiety is restricted solely to spiders and is chronic.
Anxiety triggered by a single specific object points to a specific phobia.
4
Analyze the presentation involving the combat veteran.
The trauma symptoms have persisted for 2 years.
Symptoms lasting beyond 1 month after a trauma confirm post-traumatic stress disorder.

Key Concept

Differentiating anxiety and trauma-related disorders based on symptom duration and specific triggers.
Estimated Time:1m 0s
Question 217Question →

During a routine health clearance appointment, a 20-year-old nursing student confides in the physician about severe anxiety that is jeopardizing her clinical rotations. For the past 4 months, she has experienced overwhelming fear, nausea, diaphoresis, and lightheadedness exclusively when asked to perform venipuncture or assist with wound care. On two occasions, she lost consciousness while observing minor surgical procedures. She states, "I understand the procedures logically, but the moment I see blood or needles, the room starts spinning." She denies anxiety during lectures, written examinations, or general patient interactions. She has no past psychiatric history, takes no medications, and her physical examination today is unremarkable. Which of the following is the most appropriate next step in the management of this patient?

Show answer & explanation

Answer: Referral for cognitive-behavioral therapy with applied tension techniques

Answer

Referral for cognitive-behavioral therapy with applied tension techniques
The correct answer is referral for cognitive-behavioral therapy with applied tension techniques. This patient's presentation is highly characteristic of specific phobia, blood-injection-injury (BII) type, given her intense fear and syncope triggered exclusively by medical procedures involving blood or needles. Unlike other specific phobias that cause sustained sympathetic arousal (tachycardia, hypertension), BII phobia is characterized by a unique biphasic cardiovascular response: a brief initial increase in heart rate and blood pressure is followed immediately by a robust parasympathetic surge, resulting in profound bradycardia, hypotension, and potentially vasovagal syncope. The gold-standard treatment for specific phobia is cognitive-behavioral therapy (CBT) with graded exposure. For the BII subtype, exposure therapy must be augmented with the applied tension technique. This involves teaching the patient to rhythmically tense the major muscle groups (arms, legs, and torso) during exposure to artificially elevate blood pressure and counteract the vasovagal drop, thereby preventing syncope and allowing habituation to occur.

Step-by-Step Solution

1
Identify the primary psychiatric diagnosis.
The patient experiences intense, disproportionate fear and syncope exclusively in response to seeing blood or needles, which is diagnostic of specific phobia, blood-injection-injury (BII) type.
Accurate diagnosis is required to select the appropriate evidence-based treatment.
2
Determine the underlying pathophysiology of the patient's syncope.
The syncope is caused by a unique biphasic vasovagal response (an initial sympathetic surge followed by profound parasympathetic activation causing bradycardia and hypotension).
Understanding the vasovagal mechanism guides treatment selection and rules out contraindicated therapies like beta-blockers.
3
Select the most appropriate management.
Cognitive-behavioral therapy with exposure and applied tension techniques is selected.
Applied tension increases blood pressure to counteract the parasympathetic vasovagal drop, preventing syncope and facilitating exposure therapy.

Key Concept

Management of Specific Phobia (Blood-Injection-Injury Type)
Estimated Time:1m 15s
Question 218Question →

A 28-year-old woman is brought to the clinic by her sister due to profound behavioral changes over the past 5 weeks. Six weeks ago, the patient was sexually assaulted at a social gathering. She has not reported the incident to law enforcement and explicitly asks the physician to keep the event completely confidential. The patient describes experiencing intense, intrusive flashbacks of the assault and has actively avoided leaving her apartment. She exhibits an exaggerated startle response and reports severe insomnia. Her past psychiatric history is significant for a hospitalization at age 22 for a distinct episode of elevated mood, decreased need for sleep, and grandiosity. She currently takes lithium for maintenance therapy. She also mentions that she recently started taking over-the-counter St. John's wort to help manage her current distress. Vital signs and physical examination are unremarkable. Which of the following is the most appropriate next step in the management of this patient?

Show answer & explanation

Answer: Refer the patient for trauma-focused cognitive-behavioral therapy

Answer

Refer the patient for trauma-focused cognitive-behavioral therapy
This patient's clinical presentation—intrusive flashbacks, active avoidance of the outside world, hyperarousal (insomnia, exaggerated startle), and duration of symptoms for over 1 month following a sexual assault—meets the diagnostic criteria for post-traumatic stress disorder (PTSD). Trauma-focused cognitive-behavioral therapy (such as prolonged exposure or cognitive processing therapy) is a definitive first-line treatment for PTSD. In this specific patient, psychotherapy is the most appropriate and safest next step due to her complex pharmacological profile. She has Bipolar I disorder (evidenced by her prior hospitalization for mania) and is taking over-the-counter St. John's wort. Initiating psychopharmacotherapy for PTSD (typically SSRIs or SNRIs) would introduce unacceptable risks of either a manic switch or serotonin syndrome.

Step-by-Step Solution

1
Identify the primary psychiatric diagnosis based on the clinical presentation and timeline.
The patient has intrusive flashbacks, avoidance, hyperarousal, and negative mood alterations lasting over 1 month following a traumatic event, confirming Post-Traumatic Stress Disorder (PTSD).
Accurate diagnosis is required to guide treatment; the 5-week timeline explicitly rules out Acute Stress Disorder.
2
Analyze the patient's comorbidities and current medication profile.
The patient has Bipolar I Disorder (prior hospitalization for mania) managed with lithium, and is concurrently taking St. John's wort.
Comorbidities and supplements dictate pharmacological contraindications.
3
Evaluate standard PTSD treatments against the patient's specific risk factors.
SSRIs are first-line pharmacological options for PTSD, but in this patient, they pose a dual risk: Serotonin Syndrome (due to St. John's wort) and manic switch (if given as monotherapy for Bipolar I).
Psychopharmacologic interventions must 'do no harm' by avoiding dangerous drug-drug and drug-disease interactions.
4
Select the safest, most effective first-line management strategy.
Trauma-focused cognitive-behavioral therapy is definitively first-line for PTSD and carries zero risk of pharmacological interactions or mood destabilization.
Psychotherapy is equally or more effective than pharmacotherapy for PTSD and is the treatment of choice in medically complex scenarios.

Key Concept

First-line management of PTSD in patients with complex pharmacological contraindications (e.g., Bipolar I disorder, use of serotonergic supplements) relies on trauma-focused psychotherapy to avoid severe adverse events like serotonin syndrome or manic switch.
Question 219Question →

Match each clinical vignette describing a patient's pervasive interpersonal and behavioral patterns to the most likely personality disorder diagnosis.

Click a left item, then click its matching right item

Items

A 35-year-old accountant is continually late submitting reports due to repeatedly checking them for formatting errors. He refuses to let his assistant help, insisting his method is the only correct one, and sees no issue with his behavior.
A 28-year-old actor frequently belittles his peers and expects constant praise for his 'unique talent.' He manipulates friends to advance his career and lacks empathy, though he has no history of unlawful behavior.
A 41-year-old man lives alone, collects crystals he believes offer protection from 'negative energy fields,' and feels intensely anxious even around familiar people because he suspects they are secretly plotting against him.
A 24-year-old technician eats lunch alone in her car every day. She desperately wants to join her colleagues in the breakroom but is convinced they will find her boring and harshly judge her every word.
A 30-year-old programmer works the night shift and has no friends by choice. He describes himself as indifferent to the praise or criticism of his supervisor and shows a restricted range of emotional expression.

Matches

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Answer

The vignettes match as follows: The rigid accountant has Obsessive-Compulsive Personality Disorder; the grandiose actor has Narcissistic Personality Disorder; the eccentric crystal collector has Schizotypal Personality Disorder; the fearful but lonely technician has Avoidant Personality Disorder; and the indifferent programmer has Schizoid Personality Disorder.
Each personality disorder is defined by specific, pervasive patterns of inner experience and behavior. Obsessive-Compulsive Personality Disorder is marked by rigid perfectionism; Narcissistic Personality Disorder by grandiosity and lack of empathy; Schizotypal Personality Disorder by cognitive/perceptual distortions and eccentricities; Avoidant Personality Disorder by extreme sensitivity to negative evaluation; and Schizoid Personality Disorder by detachment from social relationships and restricted emotional expression.

Step-by-Step Solution

1
Analyze the first vignette focusing on perfectionism and control.
The accountant exhibits ego-syntonic rigidity and inability to delegate, matching Obsessive-Compulsive Personality Disorder.
Differentiating ego-syntonic personality traits from ego-dystonic obsessions/compulsions is required to identify Obsessive-Compulsive Personality Disorder.
2
Evaluate the second vignette regarding grandiosity and exploitation.
The actor displays an intense need for admiration and lack of empathy without illegal behavior, matching Narcissistic Personality Disorder.
Distinguishing Narcissistic Personality Disorder from Antisocial Personality Disorder relies on the presence of grandiosity and the absence of pervasive criminality.
3
Assess the third vignette describing eccentricities and paranoia.
The crystal collector exhibits magical thinking and paranoid social anxiety, aligning with Schizotypal Personality Disorder.
These positive psychotic-like symptoms separate Schizotypal Personality Disorder from other Cluster A disorders.
4
Examine the fourth vignette regarding social isolation and fear of judgment.
The technician desires relationships but avoids them due to fear of rejection, matching Avoidant Personality Disorder.
The strong desire for social contact differentiates Avoidant Personality Disorder from Schizoid Personality Disorder.
5
Analyze the fifth vignette focusing on voluntary isolation.
The programmer is indifferent to others and lacks a desire for relationships, matching Schizoid Personality Disorder.
Voluntary social withdrawal without paranoid fears or desire for connection is the core of Schizoid Personality Disorder.

Key Concept

Differentiating personality disorders requires identifying the underlying motivations for behavior (e.g., reason for social isolation, type of grandiosity, ego-syntonic vs. ego-dystonic nature of symptoms).
Question 220Question →

Review the following patient summaries describing complex depressive presentations. Match each clinical profile with the most appropriate next step in pharmacologic or somatic management.

Click a left item, then click its matching right item

Items

An 82-year-old male with 2 months of severe depressed mood who now refuses all food and liquids, stating his intestines have completely rotted away.
A 22-year-old female with anhedonia and hypersomnia whose history includes a distinct 4-day episode of racing thoughts, decreased need for sleep, and impulsive spending that did not impair functioning.
A 35-year-old female with chronic depression, prominent mood reactivity, hyperphagia, and severe rejection sensitivity who has failed sequential trials of fluoxetine, venlafaxine, and nortriptyline.
A 45-year-old male whose depressed mood and active suicidality resolved on maximum-dose sertraline, but who currently struggles with profound residual daytime fatigue, apathy, and cognitive slowing.

Matches

Show answer & explanation

Answer

Match each clinical profile to its targeted therapy based on specific symptom clusters, psychiatric comorbidities, and urgency: the actively starving psychotic patient requires ECT; the patient with past hypomania requires quetiapine for bipolar II depression; the treatment-resistant patient with atypical features benefits from an MAOI; and the patient with residual SSRI-induced apathy requires bupropion augmentation.
Each pairing tests a specific, advanced nuance in the algorithmic treatment of depressive disorders. Patients with severe psychotic depression and refusal to eat require immediate somatic intervention (ECT) to prevent death from dehydration or starvation. Patients presenting with depression who have a history of 4 or more days of elevated mood and energy meet criteria for Bipolar II disorder; they must be treated with bipolar-specific agents (e.g., quetiapine, lurasidone) rather than traditional antidepressants to prevent mood destabilization. Treatment-resistant depression with classic atypical features (mood reactivity, hyperphagia, leaden paralysis, rejection sensitivity) shows unique responsiveness to monoamine oxidase inhibitors (MAOIs) like phenelzine, which remain a high-yield salvage therapy for this subtype. Finally, patients who achieve remission of core depressive and suicidal symptoms on an SSRI but suffer from residual fatigue, cognitive slowing, or apathy benefit from the targeted addition of bupropion, an NDRI that addresses these specific dopaminergic/noradrenergic deficits.

Step-by-Step Solution

1
Analyze the 82-year-old male's presentation.
Diagnosis is major depressive disorder with psychotic features (somatic delusion) and life-threatening inanition.
Severe starvation in an elderly patient is a psychiatric emergency where waiting weeks for oral pharmacotherapy to take effect is fatal, necessitating immediate somatic therapy (ECT).
2
Analyze the 22-year-old female's presentation.
Diagnosis is Bipolar II disorder based on the current depressive episode and a distinct past hypomanic episode (4 days of elevated energy/impulsivity without severe impairment).
Recognizing past hypomania is critical to avoid SSRI-induced mood destabilization and dictates the use of a bipolar-approved agent like quetiapine.
3
Analyze the 35-year-old female's presentation.
Diagnosis is treatment-resistant depression with atypical features.
Patients with atypical depression (mood reactivity, hyperphagia, leaden paralysis, rejection sensitivity) who fail standard antidepressants have a uniquely high response rate to MAOIs.
4
Analyze the 45-year-old male's presentation.
Diagnosis is MDD with a partial response to SSRI therapy and specific residual target symptoms (fatigue, anergia).
Bupropion targets dopamine and norepinephrine, directly alleviating fatigue and cognitive slowing without risking serotonin syndrome when added to an SSRI.

Key Concept

Advanced tailoring of pharmacologic and somatic management for depressive disorders based on severity, subtype (psychotic, atypical), comorbidities (bipolarity), and residual symptoms.
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