Bipolar I vs. bipolar II
A patient has had several major depressive episodes and one four-day period of elevated mood, less sleep, and racing thoughts that did not impair work or require hospitalization. The most likely diagnosis is:
Answer B: explanation for every choice
A
Bipolar I requires a full manic episode, marked by severe impairment, hospitalization, or psychosis.
B
Correct. Bipolar II requires at least one hypomanic episode and at least one major depressive episode.
C
Cyclothymic disorder does not include full major depressive episodes.
D
Any hypomanic episode rules out a diagnosis of major depressive disorder alone.
TakeawayBipolar I: mania. Bipolar II: hypomania plus major depression.
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Reviewed 2026-11-05 by a medical student. Spot an error? Report it with question ID ps119.