In the medical management of coronary artery disease, the following is/are true:
A.	Nitroglycerin primarily dilates coronary arterioles
B.	b-blocking agents act to reduce myocardial O2 demand
C.	Ca-channel blocking agents reduce ventricular contractility
D.	Ca-channel agents should not be used if there is an element of coronary vasospastic disease
Answer:B
In the medical management of coronary artery disease, the following is/are true:
A.	Nitroglycerin primarily dilates coronary arterioles B.	b-blocking agents act to reduce myocardial O2 demand C.	Ca-channel blocking agents reduce ventricular contractility D.	Ca-channel agents should not be used if there is an element of coronary vasospastic disease