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A member asked:
Thanks for your time and expertise - does vitamin b12 supplement interfere with hemoccult stool card testing - the green cards used by pcp as well as the ict hemoccult cards? i know vitamin c and biotin do cause interference checking on vitamin b12?
A doctor has provided 1 answer
No, vitamin B 12 ingestion would not interfere with stool testing for occult blood. Good luck.
Answered 3/7/2023
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