What type of mood episode involves extreme irritability? a. Hypomanic episode b. Depressive episode c. Substance -induced episode d. Manic episode

The correct answer is a. Hypomanic episode.A hypomanic episode is a type of mood episode that involves a period of abnormally elevated, expansive, or irritable mood, lasting for at least four days. It is characterized by symptoms such as increased energy, decreased need for sleep, grandiosity, talkativeness, racing thoughts, distractibility, and irritability. However, the symptoms are not severe enough to cause significant impairment in social or occupational functioning, unlike a manic episode.