A client is admitted to the telemetry unit with a diagnosis of unstable angina. What information should the nurse expect the client to report?

A. Unstable angina often presents as chest pain that can occur unpredictably, including at rest or during the night. B. Shortness of breath when lying flat is more characteristic of heart failure, not unstable angina. C. Palpitations during exercise are more related to arrhythmias, not a hallmark of unstable angina. D. Chest pain during sexual intercourse is exertional and may be seen in stable angina rather than unstable angina.