Which statement is true regarding patients with mania in bipolar disorder?

The statement regarding patients with mania in bipolar disorder being described as displaying heightened self-esteem and possibly feeling invincible is accurate. During manic episodes, individuals with bipolar disorder often experience an exaggerated sense of self-importance and confidence. This can manifest as feelings of grandiosity, where they believe they possess special powers or abilities. This typically leads them to take risks that they would not consider during stable or depressive phases.

In contrast, some of the other options suggest feelings or behaviors that are not characteristic of mania. For example, a lack of power is more commonly associated with depressive episodes rather than manic ones. Consistency in depression is also not applicable during manic phases, as these episodes distinctly contrast with depressive symptoms. Lastly, mania is often associated with increased sociability and impulsiveness, rather than avoidance of social situations, which is more typical of depression or anxiety disorders. Thus, the correct statement accurately captures a key aspect of manic behavior in bipolar disorder.