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A 20-year-old male asked:

Ate tomato sauce saw red bits in my stool if it was blood would the doctor do a stool sample first or go straight to colonoscopy im 20 yrs old ?

1 doctor answer1 doctor weighed in
Dr. James Ferguson
Pediatrics 47 years experience
Stool guaiac test: A common first stem in evaluating such an issue would be to take a stool sample and perform a stool guaiac test. A simple color change for the clear reagent to blue indicates it was likely blood (or not). Anyone going to colonoscopy first with this history is likely looking for something to avoid boredom.
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Last updated Dec 19, 2017

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