Which statement best describes a Kock pouch?

• A. It is an external reservoir surrounding the stoma
• B. It drains into the bladder
• C. It is an internal reservoir created from a segment of the intestine
• D. It uses a colostomy in the sigmoid colon

Answer: (C)

A Kock pouch is a continent urinary reservoir built from a segment of intestine. Surgeons fashion an internal pouch inside the abdomen, usually from ileal tissue, connect the ureters to it, and create a valve or nipple to prevent continuous leakage. A catheterizable opening is brought to the skin so the person can drain urine at intervals with a catheter, avoiding an external bag. This differs from an external ostomy pouch, which surrounds a stoma with a bag, and from drainage that occurs directly into the bladder or a colostomy in the sigmoid colon. That internal, intestinal reservoir with a catheterizable outlet is what defines a Kock pouch.