skip to main content

Bipolar I disorder — USMLE Step 3 MCQ

Instant feedback + full explanation. One question, done properly.

HardPsychiatry (outpatient management)Bipolar I disorderUSMLE Step 3

A 35-year-old has recurrent unexpected episodes of palpitations, chest tightness, trembling, and intense fear. For three months she has worried about further attacks and avoids exercising alone. Examination and ECG are normal. Which diagnosis is most likely?

Educational content. Not a substitute for clinical judgement or local policy.

Reveal the answer and explanation

Correct answer: C — Panic disorder with recurrent unexpected attacks and avoidance

Recurrent unexpected panic attacks followed by persistent concern and maladaptive avoidance are characteristic of panic disorder. The pattern differs from diffuse worry, trauma reexperiencing, and fear restricted to social evaluation.

Reference: American Psychiatric Association, Practice Guideline for Bipolar Disorder: https://www.psychiatry.org/psychiatrists/practice/clinical-practice-guidelines