[47.1j A. Uterine atony is the most common cause of PPH, even after cesarean delivery.

[47.2] B. Genital tract laceration is the most common cause of PPH in a well-contracted uterus.

[47.3] D. Ligation of the ascending branch of the uterine arteries is a method for decreasing the pulse pressure to the uterus and can help in PPH. Ligation of the cardinal ligaments leads to interruption of the uterine arteries, which usually means that a hysterectomy is necessary. Ligation of the common iliac artery would lead to lower extremity necrosis.

[47.4] E. Bleeding from multiple venipuncture sites together with abruption suggests a coagulopathy.

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