问题
单项选择题
A client is admitted to the hospital for treatment of Prinzmetal’s angina. When developing the client’s plan of care, the nurse should remember that this type of angina is triggered by（）
A. coronary artery spasm.
B. an unpredictable amount of activity.
C. activities that increase oxygen demand.
D. an unknown source.
答案
参考答案：A
解析：
Prinzmetal’s or variant angina is triggered by coronary artery spasm, An unpredictable amount of activity may trigger unstable angina. Activities that increase myocardial oxygen demand may trigger predictable stable angina.