Psychiatry Case-Based Diagnosis Quiz

A 47-year-old police officer recently began experiencing flashbacks, nightmares, and intrusive memories related to witnessing a traumatic event at work two weeks ago. He is having trouble sleeping and avoids his patrol car, as it reminds him of the incident. He often feels jumpy and on edge. What is the most likely diagnosis?

• Posttraumatic Stress Disorder (PTSD)

• Panic Disorder

• Generalized Anxiety Disorder (GAD)

• Social Anxiety Disorder

A 16-year-old boy is brought to therapy by his parents due to his frequent misbehavior. Over the last year, he has been known to lie frequently, intentionally destroy property, and has been involved in several physical fights. When confronted, he shows no remorse and blames his friends for his actions. What is the most likely diagnosis?

• Oppositional Defiant Disorder (ODD)

• Attention-Deficit/Hyperactivity Disorder (ADHD)

• Conduct Disorder

• Antisocial Personality Disorder

A 32-year-old man was recently admitted to the hospital after a week-long episode of elevated mood and irritability. During this time, he impulsively spent his life savings, gambled recklessly, and reported needing only 2 hours of sleep per night. His wife also noted that he was talking rapidly and that his thoughts were "racing." What is the most likely diagnosis?

• Borderline Personality Disorder

• Cyclothymic Disorder

• Persistent Depressive Disorder

• Bipolar I Disorder

A 25-year-old man has a pervasive pattern of social and interpersonal deficits. He has few close friends, believes he has a "sixth sense" about the future, and feels uncomfortable in social situations. Others describe him as having an eccentric or odd affect, but he does not report any hallucinations or delusions. What is the most likely diagnosis?

• Schizoid Personality Disorder

• Paranoid Personality Disorder

• Schizotypal Personality Disorder

• Avoidant Personality Disorder

A 4-year-old boy has significant difficulty with social-emotional reciprocity, rarely initiating or responding to social overtures from his parents. He insists on following the exact same routine every day and becomes very distressed by minor changes. He also shows intense, focused interests in specific objects and engages in repetitive hand-flapping behaviors. What is the most likely diagnosis?

• Social Communication Disorder

• Specific Learning Disorder

• Attention-Deficit/Hyperactivity Disorder (ADHD)

• Autism Spectrum Disorder (ASD)

A 19-year-old female presents with a significantly low body weight (BMI 16.5). She expresses an intense fear of gaining weight and denies the seriousness of her current low body weight. She reports regularly engaging in self-induced vomiting after consuming small amounts of food. This behavior has occurred frequently over the last three months. What is the most likely diagnosis?

• Bulimia Nervosa

• Anorexia Nervosa, binge-eating/purging type

• Generalized Anxiety Disorder (GAD)

• Somatic Symptom Disorder

Scenario: A 42-year-old man reports a history of experiencing multiple, recurrent panic attacks. These attacks are typically unexpected and involve palpitations, sweating, and feelings of unreality. For the past month, he has been constantly worried about having another panic attack and is now avoiding public places, such as malls and theaters, because he is afraid he won't be able to escape if another attack occurs.

• Specific Phobia, situational type

• Panic Disorder with Agoraphobia

• Generalized Anxiety Disorder

• Panic Disorder without Agoraphobia

Scenario: For the past year, a 38-year-old woman has been preoccupied with the belief that a specific part of her body is flawed. Specifically, she is certain that her nose is too large and misshapen, even though others see it as a normal nose. This preoccupation leads her to spend several hours a day checking her reflection and avoiding social situations. She is not significantly underweight.

• Social Anxiety Disorder

• Illness Anxiety Disorder

• Body Dysmorphic Disorder (BDD)

• Somatic Symptom Disorder

Scenario: For several weeks, a 24-year-old man has been tormented by repetitive, intrusive thoughts that he is going to harm his family. He knows these thoughts are irrational and unwanted, but he cannot stop them. To cope, he engages in specific mental rituals, such as counting to 100 in his head and replaying his family's positive memories, believing this will prevent him from acting on his urges. What is the most likely diagnosis for this patient?

• Generalized Anxiety Disorder

• Major Depressive Disorder

• Obsessive-Compulsive Disorder (OCD)

• Social Anxiety Disorder

A 45-year-old man consistently fails to conform to social norms and lawful behaviors. He has a history of repeated lying, conning others for personal profit, and aggressive behavior towards others. He shows no remorse for his actions and demonstrates a persistent pattern of irresponsibility, having a history of failing to hold down a job or pay his bills. His history indicates a pattern of misconduct beginning before age 15. Which disorder best fits this scenario?

• Narcissistic Personality Disorder

• Antisocial Personality Disorder (ASPD)

• Conduct Disorder

• Paranoid Personality Disorder