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Normal colon transit time

Case contributed by Mohammad Taghi Niknejad
Diagnosis certain

Presentation

Work up for chronic constipation.

Patient Data

Age: 40 years
Gender: Female
x-ray

3 of the 24 markers are retained on day 3, located within the descending and sigmoid colon as well as rectum.

Case Discussion

Normal colon transit time.

There are numerous variations in how a colonic transit study is conducted and how the findings are interpreted. In this case, 24 markers are ingested and abdominal x-rays taken 1, 24, 48, 72, 96 and 120 hours later. If 24 markers are used, then <5 rings should be present in five days. 

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