A nurse is teaching a new RN about the use of electroconvulsive therapy (ECT) for the treatment of bipolar disorder. Which of the following statements by the new RN indicates understanding?

Rationale: A. ECT is actually indicated for clients with severe depression or suicidal ideation when rapid symptom relief is necessary. B. ECT is primarily used for acute treatment, not for relapse prevention. Maintenance medications are typically used to prevent relapse. C. ECT can be an effective treatment for clients with severe manic episodes, especially when other treatments have failed or the client is a danger to themselves or others. D. ECT is not first-line; mood stabilizers and antipsychotics are typically used first. ECT is reserved for treatment-resistant or severe cases.