A nurse is caring for a client who is postoperative following abdominal surgery. The nurse discovers a loop of bowel through an opening in the surgical incision. Which of the following actions should the nurse take?

Rationale for correct answer (D): Applying moistened sterile gauze helps maintain a moist environment for the exposed bowel, preventing it from drying out and reducing the risk of infection. It also provides some protection until surgical intervention can be performed.

Summary of incorrect choices:
A (placing the head of the bed flat): This would not address the immediate need to protect the exposed bowel.
B (reinserting the bowel): This could cause further damage and should only be done by a surgeon.
C (positioning the client on left side): This does not address the exposed bowel and is not the priority.