Causes of Inaccurate Fecal Occult Blood Test Results ...

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Causes of Inaccurate Fecal Occult Blood Test Results 

False Positive gFOBT:
Ingestion of nonhuman heme (eg, meat products) 
Ingestion of peroxidases (eg, broccoli) 
Ingestion of non-Gl blood (eg, epistaxis) 
Use of aspirin, NSAIDS, or anticoagulant medication

False Positive FIT:
Use of aspirin, NSAlDs, or medication 

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Contributed by

Dr. Gerald Diaz

@GeraldMD

Board Certified Internal Medicine Hospitalist, GrepMed Editor in Chief 🇵🇭 🇺🇸 - Sign up for an account to like, bookmark and upload images to contribute to our community platform. Follow us on IG:  https://www.instagram.com/grepmed/ | Twitter: https://twitter.com/grepmeded/

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