The nurse is caring for a client who underwent a subtotal gastrectomy 24 hours earlier. The client has a nasogastric (NG) tube. The nurse should

A. apply suction to the NG tube every hour.
B. clamp the NG tube if the client complains of nausea.
C. irrigate the NG tube gently with normal saline solution.
D. reposition the NG tube if pulled out.

初产妇，孕40周，估计胎儿体重3900g，临产15小时，宫口开4cm，以5％葡萄糖、缩宫素5U静脉点滴，4小时后宫口开9cm，先露S+1，但产妇烦躁不安，疼痛难受，腹部检查，脐下两指处呈环状凹陷，下段有压痛，胎心音正常，导尿呈血性。

立即采取的处理方法为（）

A.立即产钳助产

B.继续滴缩宫素，待宫口开全后做会阴切开助产

C.立即肌内注射哌替啶（度冷丁）

D.会阴切开后头皮钳牵引助产

E.立即停注缩宫素