What assessment indicates a nurse can advance a postoperative client’s diet to clear liquids after being NPO?

The correct choice indicates that the client has passed flatus, which is a significant assessment finding after surgery. This suggests that the gastrointestinal tract is beginning to function again, as the passage of gas indicates that peristalsis is occurring. Following surgery, there is typically a period during which the patient is NPO, and returning to a clear liquid diet is contingent upon the return of bowel function.

The importance of passing flatus lies in its role as a reassuring sign that digestion is returning to normal. As peristalsis resumes, the stomach and intestines are starting to work, allowing for the safe introduction of liquids.

The other options, though relevant to postoperative assessments, do not indicate a readiness to advance to clear liquids. Complaints of nausea and vomiting suggest that the client may not be able to tolerate food yet, while the absence of bowel sounds could indicate ongoing ileus or delayed gastrointestinal function. Lastly, an increased appetite may suggest a desire for food but does not necessarily reflect the physiological readiness of the gastrointestinal system to handle intake.