The nurse is assessing a client with coronary artery disease. Which question should the nurse ask to assess for angina?

Choice A reason: Palpitations, or the sensation of a fluttering or racing heart, are more commonly associated with cardiac arrhythmias or anxiety rather than classic angina pectoris. While ischemia can trigger arrhythmias, asking about pain during exertion is the more specific and standard diagnostic inquiry for stable angina. Choice B reason: Shortness of breath when lying flat is known as orthopnea, a clinical sign of pulmonary congestion and left-sided heart failure. While heart failure often coexists with coronary artery disease, orthopnea is not the primary symptom used to define or assess the presence of anginal chest pain. Choice C reason: Angina pectoris is defined as chest pain or pressure that occurs when myocardial oxygen demand exceeds supply, most commonly during physical exertion or emotional stress. Asking about pain during exercise directly assesses for stable angina, which is a hallmark symptom of significant atherosclerotic narrowing in the coronary arteries. Choice D reason: Dyspnea on exertion is a non-specific symptom that can indicate either cardiac or pulmonary dysfunction. While it can be an "anginal equivalent" in some populations, such as the elderly or women, asking specifically about chest pain remains the standard assessment for traditional angina in a client with CAD.