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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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How to rule out colorectal cancer?

hi, i am 34 years old. i had a occult blood test for colorectal cancer screening because of family history. 3 samples were taken in 3 different days. the first and third samples were weakly positive . but the second sample was positive (+2). one day before the second sample i eat tomato and carrots.... also i take omeprazol before second sample. could i trust to the result of this test?? or is it necessary to repeat the test?? the CEA (antigen) test could help to the diagnostic process?
Wed, 26 Jul 2017
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Oncologist 's  Response
for screening purposes colonoscopy is best. now a days Circulating tumour cells tests have come up.but you should go with colonoscopy first. CEA is not good for screening as it can be raised in many other conditions also
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