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A member asked:

Is a false positive result in stool blood testing possible?

4 doctors weighed in across 2 answers

Yes: Occult blood tests based on testing for peroxidase activity generate false positives from eating meat, horse radish and iron intake.

Answered 1/29/2012

6.1k views

Thank
Dr. Gregory Hines answered

Specializes in Family Medicine

Certainly: If you take an iron supplement, it will turn a stool test positive, as that is what the stool test is for.

Dr Hadied and another doctor agreed

Answered 7/5/2012

6k views

Thank

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