MedlinePlus Medical Encyclopedia: Gelatin capsule in stomach

Medical Encyclopedia

Gelatin capsule in stomach

A string test is performed to detect the presence of intestinal parasites. A weighted gelatin capsule attached to a string is swallowed and left in place. After about 4 hours, the gelatin capsule is pulled out of the stomach by the string. Any bile, blood, or mucus remaining on the string is examined under the microscope for cell types and segments of parasites or eggs.

Update Date: 1/22/2007

Updated by: Jenifer K. Lehrer, MD, Department of Gastroenterology, Frankford-Torresdale Hospital, Jefferson Health System, Philadelphia, PA. Review provided by VeriMed Healthcare Network.

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