问题
单项选择题
A pregnant client who is diabetic is at risk for having a large-for-gestational-age infant because of which of the following()
A. Excess sugar causing reduced placental functioning.
B. Insulin acting as a growth hormone on the fetus.
C. Maternal dietary intake of high calories.
D. Excess insulin reducing placental functioning.
答案
参考答案：B
解析：
Insulin acts as a growth hormone on the fetus. Therefore, pregnant diabetic clients must maintain good glucose control. Large babies are prone to complications and may have to be delivered by cesarean section. Neither excess sugar nor excess insulin reduces placental functioning. A high-calorie diet helps control the mother’s disease and doesn’t contribute to neonatal size.