问题
单项选择题
The nurse is caring for a client who is experiencing sinus bradycardia with a pulse rate of 40 beats/minute. His blood pressure is 80/50 mmHg and he complains of dizziness. Which medication would be used to treat his bradycardia
A. Atropine.
B. Dobutamine (Dobutrex).
C. Bretylium (Bretylol).
D. Lidocaine (Xylocaine).
答案
参考答案：A
解析：IV push atropine is used to treat symptomatic bradycardia. Dobutamine is used to treat heart failure and low cardiac output. Bretylium is used to treat ventricular fibrillation (VF) and unstable ventricular tachycardia (VT). Lidocaine is used to treat ventricular ectopy, VT, and VF.