Psychiatry

A 24-year-old man is diagnosed with schizophrenia after a 9-month history of auditory hallucinations, disorganized speech, and persecutory delusions. He has no significant past medical history and his urine toxicology screen is negative. His psychiatrist is developing a comprehensive pharmacological management plan to address his symptoms. The physician considers the various stages of psychopharmacological treatment, from the initial presentation to the potential development of severe refractoriness. Arrange the following therapeutic steps in the correct sequential order for the standard stepwise management of this patient's illness, starting with the initial intervention.

A 29-year-old woman is brought to the emergency department by her partner due to worsening confusion, extreme restlessness, and tremors. Her temperature is $39.4^{\circ}\text{C}$ ($102.9^{\circ}\text{F}$), heart rate is $132\text{/min}$, and blood pressure is $164/98\text{ mm Hg}$. Physical examination reveals profuse diaphoresis, mydriasis, hyperreflexia, and sustained clonus in the bilateral lower extremities. Her medical history is significant for major depressive disorder treated with sertraline. Two days ago, she began taking an over-the-counter dextromethorphan syrup for a cough. Arrange the following therapeutic interventions in the most appropriate sequential order for managing this patient's condition, starting from the immediate first step to treatments reserved for progressively severe or refractory toxicity.

Seeking assistance to achieve sobriety, a 48-year-old male construction worker presents to an addiction medicine clinic. He reports consuming a half-liter of vodka daily and feels unable to quit relying on willpower alone. His medical history is notable for a previous heroin addiction, which has been in stable remission for three years via daily buprenorphine-naloxone therapy. He was also diagnosed with chronic hepatitis C two years ago but has not received antiviral treatment. Vital signs are within normal limits. Physical examination shows a calm, cooperative patient with no tremors, diaphoresis, or autonomic instability.

Laboratory evaluation reveals:

The patient requests a medication to help reduce his alcohol consumption. Which of the following is the most appropriate pharmacotherapy for this patient?

A 19-year-old man is brought to the emergency department by his college roommate due to increasingly bizarre behavior. The roommate reports that for the past 21 days, the patient has been highly agitated, refusing to attend classes, and has barricaded himself in their shared dorm room. The patient confidently claims that foreign intelligence agents are tracking his movements through the campus Wi-Fi network. During the interview, the patient appears guarded, frequently pauses to whisper to the empty corner of the room, and his speech frequently derails into unrelated topics. His medical history is unremarkable, and he takes no medications. Vital signs and physical examination are within normal limits. A comprehensive urine toxicology screen is negative. Which of the following is the most likely diagnosis?

A patient with well-controlled depression is evaluated during a same-day appointment for acute-onset agitation, sweating, and muscle spasms. The 45-year-old male states these symptoms began roughly 12 hours ago. His medical history includes major depressive disorder, for which he takes citalopram daily. Two days ago, he strained his lower back while moving heavy boxes and received a prescription from a local urgent care facility. Vital signs show a temperature of 38.6°C (101.5°F), blood pressure of 162/94 mm Hg, and heart rate of 115/min. On physical examination, the patient appears visibly restless and diaphoretic. Neurological assessment reveals bilateral ocular clonus, generalized hyperreflexia, and sustained ankle clonus. Which of the following medications was most likely prescribed for this patient's back injury?

Match each clinical vignette describing a patient's therapeutic intervention to the most appropriate psychological therapy modality.

A 20-year-old man is brought to the emergency department by the police after he was found wandering on a busy highway, shouting at passing vehicles. In the emergency department, he is highly agitated, pacing the room, and stating that the cars are emitting radio waves to control his mind. His speech is disorganized, and he frequently pauses as if responding to unseen stimuli. The patient's parents are contacted and arrive at the hospital. They report that these severe, bizarre behaviors began only 2 weeks ago. However, they note that for the past 9 months, he has undergone a significant change. Previously a sociable and high-achieving college student, he gradually stopped seeing his friends, dropped out of his classes, and spent most of his days sitting in his darkened bedroom showing very little emotion. His medical history is unremarkable, and a urine toxicology screen is negative. Which of the following is the most likely diagnosis?

During a routine oncology follow-up, a 52-year-old female patient reports an eight-week history of persistently low mood, loss of interest in activities she previously enjoyed, early morning awakenings, and severe fatigue. She has a history of estrogen receptor-positive breast cancer that was treated with surgical resection and radiation therapy two years ago. She is currently maintained on daily tamoxifen to prevent cancer recurrence. Vital signs include a blood pressure of $124/78 \text{ mm Hg}$, pulse of $72/\text{min}$, and temperature of $37.1^\circ\text{C}$ ($98.8^\circ\text{F}$). Mental status examination reveals a tearful, blunted affect and psychomotor retardation, with no evidence of psychosis or suicidal ideation. A diagnosis of major depressive disorder is established, and pharmacotherapy is considered. Which of the following antidepressants should be strictly avoided in this patient to prevent a reduction in the efficacy of her antineoplastic therapy?

A 20-year-old man is brought to the emergency department by his college roommate due to profound fatigue, severe depressed mood, and increased appetite for the past two days. The roommate reports that last week, the patient was awake for four consecutive days preparing for final exams. During that time, the patient was highly energetic, unusually talkative, and told his roommate he had "unlocked the mathematical secrets of the universe." The patient now sleeps up to 16 hours a day and complains of intensely vivid, disturbing dreams when he briefly awakens. He has no prior medical or psychiatric history and takes no prescribed medications. Vital signs are temperature 36.8°C (98.2°F), blood pressure 112/72 mm Hg, pulse 58/min, and respirations 14/min. Physical examination shows a flat affect and significant psychomotor retardation, but no focal neurological deficits. Which of the following is the most appropriate next step in management?

A 26-year-old man with a recent diagnosis of schizophrenia is initiated on haloperidol therapy. As his physician, you will monitor him closely for extrapyramidal symptoms (EPS). Arrange the following clinical presentations of extrapyramidal side effects in the correct chronological order based on their typical onset following the initiation of typical antipsychotic therapy, from earliest onset to latest onset.

The natural history of schizophrenia typically unfolds over a patient's lifespan, reflecting its underlying neurodevelopmental pathology. Arrange the following characteristic clinical phases of the disorder in their correct chronological sequence of occurrence, from the earliest manifestation to the most advanced chronic stage.

In the emergency department setting, rapid identification of specific substance toxidromes is critical for guiding appropriate acute management and supportive care. Match each substance-related clinical state with its most characteristic physical examination findings and clinical presentation.

A 32-year-old man is brought to the psychiatric clinic by his sister for a follow-up evaluation. The patient has a 10-month history of continuous psychiatric symptoms. According to the sister, the illness began with a 7-month period during which the patient experienced severe sadness, loss of appetite, hypersomnia, and intense feelings of worthlessness. During this same 7-month period, he also began hearing voices plotting to harm him and firmly believed his neighbors were attempting to poison his water supply. Following a medication adjustment 3 months ago, the patient's mood, appetite, and sleep completely returned to normal, and he no longer feels sad or worthless. However, over the past 3 months of euthymia, he has continued to hear voices and remains convinced that his water is poisoned. He does not use illicit substances, and a urine drug screen is negative. Which of the following is the most likely diagnosis?

An internal medicine rapid response team is called to evaluate a 25-year-old hospitalized man for acute-onset severe agitation and chest discomfort. The patient was admitted yesterday for a soft tissue infection of the right arm and has been receiving intravenous cefazolin. When the physician arrives, the patient is pacing the room, visibly sweating, and shouting at the nursing staff. Vital signs are temperature 37.9°C (100.2°F), blood pressure 178/112 mm Hg, pulse 132/min, and respirations 24/min. Physical examination reveals bilateral mydriasis and significant diaphoresis. A friend who was visiting the patient abruptly left the room right before the episode started. An ECG demonstrates sinus tachycardia with no ST-segment changes. Which of the following is the most appropriate initial step in the pharmacologic management of this patient?

A 52-year-old man with a known history of severe alcohol use disorder is brought to the emergency department by emergency medical services after being found confused and wandering in a park. On examination, he is disoriented to time and place, has horizontal nystagmus, and exhibits a wide-based, unsteady gait. He appears malnourished. Arrange the following diagnostic and therapeutic steps in the most appropriate sequential order for the acute management of this patient.

A 23-year-old man is diagnosed with schizophrenia after presenting with a 7-month history of auditory hallucinations and disorganized behavior. His physician discusses the long-term management plan, noting that many patients require medication adjustments over their lifetime to achieve and maintain symptom remission. Arrange the following pharmacological interventions in the standard step-wise treatment algorithm for schizophrenia, from initial treatment of a first episode to the management of severe, treatment-refractory disease.

Match each patient presenting with major depressive disorder to the most appropriate first-line pharmacologic treatment based on their specific comorbidities and symptom profile.

A 48-year-old woman is evaluated in the outpatient psychiatry clinic at the insistence of her husband. For the past 9 months, she has been absolutely convinced that her neighbors are piping toxic gases into her home through the ventilation system to force her to move out. She has sealed all the vents in her house with duct tape and frequently sleeps in her car to "escape the fumes." She denies hearing voices, and her thoughts are otherwise logical and goal-directed. She continues to work successfully as a freelance graphic designer and maintains her close friendships, provided she does not discuss her neighbors. Her husband reports her mood has been generally stable, though she is understandably frustrated by the "gas attacks." Physical examination, neurological evaluation, and laboratory studies are unremarkable. Which of the following is the most accurate diagnosis for this patient?

A 34-year-old woman is brought to the emergency department due to a sudden, severe, throbbing headache and blurred vision. Her symptoms began approximately one hour after she ingested an over-the-counter oral decongestant for a viral upper respiratory infection. Her medical history is significant for treatment-resistant atypical depression. After failing several medication trials, she was started on a new psychiatric medication four weeks ago, which has significantly improved her mood. Her temperature is 37.1°C (98.8°F), pulse is 118/min, and blood pressure is 225/125 mmHg. Physical examination reveals a diaphoretic, anxious patient in obvious distress. Neurologic examination demonstrates normal muscle tone, 2+ deep tendon reflexes globally, and absent clonus. Which of the following psychiatric medications was most likely prescribed to this patient?

Match each clinical presentation of a substance-related medical complication to the substance most likely responsible for the patient's condition.