The nurse is providing postoperative care for a client recovering from abdominal surgery. The client is receiving morphine through a client-controlled analgesia pump. Which finding would indicate that the client is obtaining adequate pain relief

A. Awakening several times during the night to redose.
B. Respiratory rate of 10 breaths/minute.
C. Pain rating of 2 or 3 on a scale of 0 to 10.
D. Complaint of itching as an adverse effect of the analgesi

肛裂的保守治疗包括（）。

A.治疗原则是保持排便通畅，镇痛，中断恶性循环，促使创面愈合

B.增加膳食纤维饮食及水的摄入量

C.口服硫酸镁

D.外用三硝酸甘油酯

E.有三联症的肛裂患者可行肛管扩张