How to Interpret a SITZMARKS® Test
Reading the Results:
If over 80% of the markers are passed by day 5, colonic transit is not grossly abnormal. If the remaining markers are scattered about the colon, the condition is most likely hypomotility or colonic inertia. If the remaining markers are accumulated in the rectum or rectosigmoid, the condition is most likely functional outlet delay, e.g., internal rectal prolapse, anismus.
If 5 or less markers remain, patient has grossly normal colonic transit.
If most rings are scattered about the colon, patient most likely has hypomotility or coIonic inertia.
If most rings are gathered in the rectosigmoid, patient has functional outlet obstruction.