问题
单项选择题
The nurse is caring for a client with mild active bleeding from placenta previa. Which of the following observations indicates that an emergency cesarean section may be necessary（）
A. Increased maternal blood pressure of 150/90 mmHg.
B. Decreased amount of vaginal bleeding.
C. Fetal heart rate of 80 beats per minute.
D. Maternal heart rate of 65 beats per minute.
答案
参考答案：C
解析：
A drop in fetal heart rate signals fetal distress and may indicate the need for a cesarean delivery to prevent neonatal death. Maternal blood pressure, pulse rate, respiratory rate, intake and output, and description of vaginal bleeding are all important assessment factors; however, changes in these factors don’t always necessitate the delivery of the neonate.