What methods used to detect small daily losses of blood from the gut in patients with anemia?

Updated: Oct 08, 2018
  • Author: Joseph E Maakaron, MD; Chief Editor: Emmanuel C Besa, MD  more...
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Answer

The two methods used to detect small daily losses of blood from the gut are as follows: (1) placing the patient on a meat-free diet for several days and using more sensitive methods, such as a benzidine test, and (2) labeling the patient's RBCs with chromium 51 and collecting stool specimens for the detection of the radioisotope. In addition, GI bleeding can be investigated using endoscopy and radiographic studies (see Imaging and Procedures).


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