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Colonoscopy Algorithm

Isolated Rectal Bleeding

Algorithm for investigation

Algorithm diagram

* Change in bowel habit, abdominal pain/ mass, weight loss, anorexia or anaemia.
** Colonoscopy is advised in anyone over the age of 40.
*** Flexible sigmoidoscopy: examines distal 60 cms of rectum and colon. Enema required but no sedation. Refer patient to One-stop rectal bleeding clinic.

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