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string test



  1. an infrequently used test to locate gastrointestinal hemorrhage; a weighted string is repeatedly swallowed and removed, each time allowing the string to go further down the intestine until blood is encountered;
  2. a similar procedure to obtain a specimen from the bowel lumen.
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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.