问题
单项选择题
A client is to have a cesarean delivery because of continuous vaginal bleeding and an abnormal fetal heart rate tracing. Which of the following would be the best preoperative medication for this client
A. Meperidine (Demerol).
B. Oxytocin (Pitocin).
C. Promethazine (Phenergan).
D. Glycopyrrolate (Robinul).
答案
参考答案：D
解析：Glycopyrrolate is a parasympatholytic that will decrease the risk of aspiration. Meperidine and promethazine can cause central nervous system and respiratory depression in neonates. Oxytocin precipitates labor.