Personality Disorders

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

A 45-year-old man is admitted to the internal medicine ward for the management of acute pancreatitis. He is a self-employed auditor. Shortly after admission, he becomes highly guarded and refuses his prescribed intravenous analgesics. He states, 'I know that hospitals get kickbacks for addicting patients to opioids. You are trying to prolong my stay to maximize your billing.' He closely inspects his intravenous line, demanding to see the exact manufacturer label on the saline bag, suspecting the staff is tampering with his fluids. He demands to review the medical license of every clinician who enters his room. Despite his intense accusations, his thought process is logical, he is fully oriented, and he denies hearing voices or having visions. He has no history of psychiatric hospitalizations. His sister, who is visiting, reports that he has 'always been like this.' She notes that since his early twenties, he has frequently lost friends because he bears grudges over minor perceived slights and constantly suspects others are trying to exploit him. He is currently estranged from his wife due to his unfounded accusations of her infidelity. Which of the following is the most appropriate next step in the management of this patient?

A 42-year-old man is admitted to the cardiac telemetry unit for observation following an episode of unstable angina. On hospital day 2, the cardiology team requests a psychiatric consultation due to disruptive behavior. The nursing staff reports that the patient frequently presses the call button and becomes irate if not answered immediately, accusing the nurses of "deliberately ignoring" him. However, when the attending cardiologist rounds, the patient is highly complimentary, describing the attending as "the only competent doctor in this entire hospital" and stating that the rest of the staff are "idiots who are going to kill me." Later that afternoon, after a resident physician informs him that he cannot have an extra portion of dessert on his cardiac-restricted diet, the patient becomes tearful, threatens to leave against medical advice, and screams that nobody cares if he starves to death. Which of the following is the most appropriate recommendation for the medical team in managing this patient?

A family medicine physician evaluates a 22-year-old college student who scheduled an urgent appointment. The student is highly distressed, stating that her roommate recently asked her to move out. The patient has a well-documented history of borderline personality disorder, characterized by recurrent superficial self-harm, chronic feelings of emptiness, and chaotic interpersonal relationships. During the visit, she insists that the physician call her roommate to explain that her behaviors are due to a medical condition and that she should not be evicted. Additionally, she demands a prescription for a combination of fluoxetine and phenelzine, claiming she read on an internet forum that this combination 'cures mood swings.' Which of the following is the most appropriate action for the physician to take?

A 26-year-old woman is evaluated in the outpatient clinic for emotional instability. She reports a long history of chronic feelings of emptiness, recurrent superficial self-harm, and frantic efforts to prevent her friends from abandoning her. She states that her mood frequently shifts from intense sadness to rage, often multiple times within the same day based on minor perceived slights. The patient is currently prescribed fluoxetine for depressive symptoms but demands an immediate switch to phenelzine, a medication she read about online. When the physician hesitates, she becomes intensely angry and devalues the physician's competence. Which of the following statements regarding this patient's diagnosis and management are accurate? (Select 3)

A 23-year-old woman is evaluated in the emergency department after sustaining superficial lacerations to her left forearm. She reports that she cut herself with a razor blade because she felt 'empty' after her romantic partner of three weeks stopped returning her text messages. She describes her partner as 'the only person who has ever truly understood my soul.' The patient's medical history is significant for multiple previous emergency visits for similar behaviors, as well as a diagnosis of treatment-resistant atypical depression for which she currently takes tranylcypromine. While in the department, she is highly cooperative with the attending physician but frequently yells at the nursing staff, claiming they are 'incompetent and cruel.' When asked for emergency contacts, she provides her partner's phone number but explicitly states, 'Do not tell him I am here or why I am here.'

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

A 48-year-old man presents to a new primary care physician to establish care. Upon entering the examination room, he immediately questions the physician about the security protocols of the electronic health record system, stating, "I am well aware that medical institutions frequently leak data to insurance conglomerates to orchestrate coverage denials." He refuses to provide a comprehensive family history, claiming such information will be "weaponized" against him. During the interview, he notes that he was recently terminated from his job as a civil engineer because his coworkers were "secretly coordinating to undermine my structural reports and take credit for my designs." When the physician asks if he has definitive evidence of this, he replies, "I don't need a smoking gun; the subtle glances they exchanged were proof enough." He also mentions he restricts his wife's access to their shared bank accounts because "loyalty is a rare commodity." The patient is well-groomed, his speech is organized, and he denies any history of hearing voices or seeing things others do not. Which of the following features of this patient's presentation most strongly supports a diagnosis of paranoid personality disorder rather than delusional disorder?

During morning rounds and surgical consultations, the consultation-liaison psychiatry team is asked to evaluate five different patients who are complicating their own medical care through deeply ingrained, inflexible behavioral patterns. Evaluate the interpersonal dynamics and defense mechanisms presented in each scenario, and pair each patient with the most accurate underlying psychiatric diagnosis.

A 27-year-old man is referred to a psychiatrist for an evaluation requested by his employer. Over the past four years, his coworkers have complained that he behaves oddly, often wearing heavy winter clothing in the middle of summer and muttering to himself in the breakroom. During the interview, the patient makes poor eye contact and displays a constricted affect. He explains that he avoids social gatherings because he feels "out of sync" with others. When discussing his lack of friends, he utilizes fantasy as a defense mechanism, explaining that he does not need physical companions because he maintains strong telepathic connections with others on an "astral plane." He denies ever hearing external voices, seeing things that are not there, or feeling that his thoughts are being controlled by outside forces. His thought processes, while highly eccentric, remain logical. These traits have been stable since his late teens. Which of the following is the most likely diagnosis?

A 29-year-old woman presents to the outpatient gynecology clinic for a routine wellness examination and contraception counseling. During the initial interview, she is exceptionally complimentary, telling the physician, "You are the only doctor I have ever met who truly listens. My last gynecologist was completely incompetent, ignored my concerns, and practically ruined my health." Toward the end of the appointment, she asks for the physician's personal cell phone number, stating she needs it "just in case I have a medical emergency after hours." When the physician politely declines and explains the clinic's standard answering service and on-call procedures, the patient's demeanor changes abruptly. She becomes visibly furious, yells that the physician is "just as cold and heartless as the rest of them," and threatens to leave without undergoing the physical examination. The patient has no history of mania, psychosis, or substance use disorder. Which of the following is the most appropriate next step in the management of this patient?

A 22-year-old college student is referred to the university psychiatric clinic by his academic advisor due to social isolation and eccentric behavior. For the past three years, the patient has had no close friends and spends most of his weekends extensively researching clairvoyance, telepathy, and astral projection. He tells the physician that he can frequently "feel the vibrational energy" of other people in the room, which makes him highly uncomfortable in crowds. He wears a heavy trench coat adorned with multiple mismatched scarves, regardless of the weather. His speech is vague and highly circumstantial, often drifting into tangential discussions about "cosmic alignments," but his thought process remains goal-directed without frank disorganization. He explicitly denies auditory or visual hallucinations, and there is no evidence of major depressive or manic episodes. He occasionally takes citalopram, which was prescribed by his primary care physician for mild generalized anxiety. Which of the following statements regarding the diagnosis and management of this patient's condition are accurate? (Select 2)

Match each clinical vignette with the most likely personality disorder diagnosis.

Match each patient's clinical vignette with the most appropriate personality disorder diagnosis.

A 32-year-old woman is evaluated in the outpatient psychiatric clinic for chronic relationship difficulties. She recently separated from her husband of three years. She states, 'I did everything he asked. I moved to a city I hated, quit my job so I could be home when he wanted, and even stopped talking to my friends because he thought they were a bad influence. I just wanted him to make the decisions so I wouldn't mess things up.' Despite her concessions, her husband filed for divorce. Since the separation, she has felt 'lost and completely helpless.' She immediately moved in with her older sister and has been pleading with her sister to help her find a new job, decide what clothes to wear, and manage her finances. When asked how she coped when her husband first mentioned divorce, she says, 'I begged him to stay and promised I would change whatever he wanted. I just panicked and clung to him tighter.' She denies ever making suicide attempts, engaging in self-injurious behavior, or experiencing sudden angry outbursts toward her husband. She has no history of substance use disorder.

Which of the following clinical features most accurately distinguishes this patient's personality pathology from borderline personality disorder?

A 45-year-old night-shift security guard is evaluated at a primary care clinic for a routine employment physical. The patient reports that he lives entirely alone and spends his off-hours building intricate model ships. When the physician asks about his social support system, the patient states that he has no close friends and prefers it that way, noting that interacting with others is exhausting and uninteresting to him. He expresses no desire for romantic or sexual relationships. During the interview, he appears indifferent to the physician's attempts to build rapport and displays a flattened, detached affect. He denies experiencing any hallucinations, paranoia, or periods of depressed mood. Which of the following is the most likely diagnosis?

A 38-year-old freelance artist is accompanied to a primary care appointment by her older sister. The patient is wearing heavily layered, mismatched clothing adorned with various metallic charms that she claims "deflect negative electromagnetic frequencies." During the interview, she speaks in a circumstantial and overly abstract manner, describing her health as being "out of alignment with the lunar cycles." She avoids eye contact, appearing highly uncomfortable, and mentions that she rarely leaves her apartment because she is overwhelmed by the "intense auras" of other people. Her sister expresses frustration, stating that this behavior has persisted since the patient's early twenties, and requests that the physician "prescribe medication to stop these delusions." The patient denies hearing voices or believing that others are trying to harm her. She is fully oriented and correctly answers questions about her medical history. Which of the following is the most appropriate action by the physician?

A 38-year-old man is hospitalized for intravenous antibiotic therapy for severe lower extremity cellulitis. Over the past 48 hours, the nursing staff reports escalating behavioral difficulties. The patient exhibits rapid, unpredictable shifts in affect, ranging from profound tearfulness to intense, sarcastic outbursts. He recently told the attending physician, "You are the only competent doctor in this hospital; the morning nurses are maliciously ignoring my needs." Following a minor delay in receiving his morning meal tray, he became extremely distressed and reported briefly hearing a voice telling him he is "worthless." This perceptual disturbance completely resolved within two hours after a supportive conversation with the clinical social worker. His medical record indicates a history of recurrent impulsive medication overdoses, chronic feelings of emptiness, and tumultuous interpersonal relationships. His home medications include phenelzine for a history of treatment-resistant depression. The patient is currently demanding that the team "do something to fix my severe depression right now."

Which 3 of the following interventions are appropriate components of this patient's comprehensive management plan during this admission?

A 34-year-old man comes to the clinic seeking a second opinion regarding his "chronic fatigue and workplace stress." He brings a 5-page typed document detailing his symptoms, previous doctors' visits, and a list of medical literature he has reviewed. He states that he is constantly exhausted because he works 80 hours a week as a software developer. He explains, "I have to do everything myself because my colleagues are incompetent and careless. If I delegate, the code will be messy, and I refuse to release anything less than perfect." Because of this rigid standard, he frequently misses project deadlines, which recently led to a formal reprimand from his manager. The patient expresses anger at his manager's "inability to appreciate true quality." He denies any repetitive rituals or intrusive thoughts that cause him distress. He reports no periods of elevated mood, impulsivity, or decreased need for sleep. He has no close friends because he finds socializing to be "an inefficient use of time." Which of the following is the most likely diagnosis?

Match each clinical vignette with the most appropriate personality disorder diagnosis.

A 55-year-old man is recovering on the telemetry floor following a myocardial infarction. Throughout his hospitalization, he has been meticulously recording his vital signs, fluid intake, and medication administration times in a personal notebook. He frequently argues with the nursing staff, insisting that his medications be given at the exact minute they are scheduled, rather than within the hospital's standard 30-minute administration window. When the attending physician suggests a minor adjustment to his cardiac rehabilitation plan, the patient becomes visibly anxious, stating that they must stick to the 'original protocol,' and demands to read the primary research articles supporting the change. His wife notes that his need for order and perfectionism has caused significant strain in their marriage, as he insists household tasks be done 'exactly his way.' Which of the following represent appropriate management strategies for this patient's underlying personality structure while he is hospitalized? (Select all that apply)