Bipolar I disorder is characterized by what types of episodes?

Bipolar I disorder is specifically characterized by the presence of at least one manic episode, which is a key distinguishing feature of this condition. In addition to manic episodes, individuals with Bipolar I may also experience depressive episodes. Manic episodes involve elevated mood, increased activity or energy, and other symptoms that can significantly impair functioning or require hospitalization.

The presence of depressive episodes in addition to manic episodes helps to provide a fuller picture of the disorder, as these mood swings can be quite severe, impacting various aspects of a person's life, including relationships and work. The exploratory nature of these episodes, particularly how they can range from intense manic highs to depressive lows, underscores the complexity of Bipolar I disorder.

By contrast, other options like just hypomanic episodes or only depressive episodes do not accurately capture the diagnostic criteria for Bipolar I, which explicitly requires evidence of at least one manic episode. Understanding this distinction is crucial for accurate diagnosis and treatment planning in psychiatric practice.