女性，26岁。初孕妇，妊娠39周，剧烈持续腹痛4小时入院。贫血貌，血压130/80mmHg，脉搏120次/分，子宫硬，不松弛，有局限性压痛，胎位不清，胎心110次/分， * * 少量流血，肛查宫口未开。

可能的诊断是（）。

A.前置胎盘

B.先兆子痫

C.继发性贫血

D.低张性子宫收缩乏力

E.胎盘早剥

A client delivered a healthy full-term female neonate 2 hours ago by cesarean delivery. When assessing this client, which finding requires immediate nursing action

A．Tachycardia and hypotension.

B．Gush of vaginal blood when the client stands up.

C．Blood stain 2" (5 cm) in diameter on the abdominal dressing.

D．Complaints of abdominal pain.