What fraction of ostomy surgeries are urinary stomas?

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Multiple Choice

What fraction of ostomy surgeries are urinary stomas?

Explanation:
Understanding how ostomy types are distributed helps answer this. Urinary stomas are a minority among ostomy surgeries. In most patient populations, about one third of newly created ostomies are urinary diversions, such as ileal conduits, while the larger share are intestinal stomas like ileostomies and colostomies. This reflects that colorectal diseases are a more common reason for creating an ostomy than bladder cancer requiring urinary diversion. Therefore, the best choice is about one third. The other options overstate how common urinary stomas are relative to all ostomies.

Understanding how ostomy types are distributed helps answer this. Urinary stomas are a minority among ostomy surgeries. In most patient populations, about one third of newly created ostomies are urinary diversions, such as ileal conduits, while the larger share are intestinal stomas like ileostomies and colostomies. This reflects that colorectal diseases are a more common reason for creating an ostomy than bladder cancer requiring urinary diversion. Therefore, the best choice is about one third. The other options overstate how common urinary stomas are relative to all ostomies.

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