Which statement best describes Persistent Depressive Disorder (Dysthymia)?

• A. Chronic, persistent feelings of sadness, hopelessness, and low mood lasting at least two years
• B. Acute mood swings with brief elated/depressed episodes
• C. Manic episodes
• D. Hypothyroidism

Answer: (A)

Persistent Depressive Disorder, or dysthymia, is defined by a depressed mood that lasts most of the day, more days than not, for a prolonged period—typically at least two years in adults. The hallmark is chronic low mood that persists rather than occurring as isolated episodes, and symptoms may be milder than a major depressive episode but are ongoing. This duration and persistence match the description in the statement, making it the best choice. Other options describe episodic mood changes, manic symptoms, or a medical condition rather than a primary chronic mood disorder.