A nurse is assessing a client following a colonoscopy. Which of the following findings indicates a possible complication of the procedure?

A. Mild abdominal cramping is an expected post-procedure finding. During colonoscopy, air is insufflated into the colon to improve visualization. This can cause temporary distention and cramping, which usually resolves within a few hours. Cramping is considered normal and self-limiting, not indicative of a complication unless severe, persistent, or accompanied by other symptoms such as fever or bleeding. B. A sensation of fullness or bloating is common due to residual air in the colon after the procedure. It is expected and typically relieved by the passage of flatus. Clients should be reassured that this sensation is temporary. C. Light-headedness can signal a serious complication, such as post-procedure bleeding or hypotension. Colonoscopy carries a risk of colonic perforation or bleeding, especially if a polyp was removed or a biopsy performed. Early signs of complications include dizziness, pallor, tachycardia, hypotension, or persistent abdominal pain. Light-headedness after a colonoscopy warrants immediate assessment, including vital signs, abdominal exam, and evaluation for bleeding, and the provider should be notified promptly. D. Passing gas is expected after colonoscopy as air introduced during the procedure is expelled. This indicates normal bowel function returning and is not a complication.