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Cancer Genetics

CA 19.9



In year 2009 I have did my tumor marker check up and CA19.9 shows 35u/ml. Is this a normal range? Should I need to do the test again yearly, weekly to see the range? When I seek the doctor`s advice, he mentioned nothing to be worried, and the range should not go beyond 37u/ml. Can you please advise me? Thank you.


This falls into the area of medical management. Since you mentioned that you spoke with a doctor, I encourage to you discuss your concerns with him. He will be able to advise you about the normal range, whether further follow-up is needed, and when to have the test repeated.

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Response by:

Duane D Culler, PhD, MS Duane D Culler, PhD, MS
Clinical Instructor of Genetics
School of Medicine
Case Western Reserve University