Final answer:
A distinct period of abnormal and persistent elevation or irritation of mood, accompanied by increased energy, lasting for at least 1 week is known as a manic episode. It is a characteristic feature of bipolar disorder and is marked by elevated mood, grandiosity, racing thoughts, decreased need for sleep, and heightened energy levels.
Step-by-step explanation:
The term used to describe a distinct period of abnormal and persistent elevation or irritation of mood, accompanied by increased energy, lasting for at least 1 week is c) Manic episode.
A manic episode is a characteristic feature of bipolar disorder, where individuals experience an intense emotional state marked by elevated mood, grandiosity, racing thoughts, decreased need for sleep, and heightened energy levels. During a manic episode, people may engage in impulsive and risky behaviors.
For example, they may spend excessive amounts of money, engage in reckless driving, or exhibit increased involvement in pleasurable activities. It is important to note that a manic episode is distinct from hypomania (a milder form of mania) and major depressive episodes (periods of intense sadness and hopelessness).