When a client questions the nurse as to the purpose of exercise electrocardiography (ECG) in the diagnosis of cardiovasc

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When a client questions the nurse as to the purpose of exercise electrocardiography (ECG) in the diagnosis of cardiovascular disorders, the nurses response should be based on the fact that:

A. The test provides a baseline for further tests
B. The procedure simulates usual daily activity and myocardial performance
C. The client can be monitored while cardiac conditioning and heart toning are done
D. Ischemia can be diagnosed because exercise increases O2 consumption and demand