问题
单项选择题
Which of the following situations is more likely to predispose a client to postpartum hemorrhage
A. Birth of a 7 lb (3,175g) infant.
B. Prolonged first stage of labor.
C. Pregnancy-induced hypertension (PIH).
D. Birth of twins.
答案
参考答案：D
解析：Multiple gestation causes overdistention of the abdomen, which can lead to uterine atony and, thus, uterine hemorrhage. A weight of 3,175 g (7 lb) is classified as normal for an infant. A macrocosmic infant [-4,000g (8 lb, [*] oz)] could cause uterine atony. Neither long labor nor PIH causes postpartum hemorrhage.