Blood test

chili123Member

I have a jpouch but a recent scope made my doctor think i may have crohns so they did a bunch of blood tests. All have been normal except C REACTIVE PROTEIN, HIGH SENSITIVITY that came in high at 5.35 mg/l. When I googled it, sounds like that can go very, very high. Anyone familiar with this test and association to crohns? Normal shows up to 3 mg/l but I've read can be in the 100's so makes me think I'm not looking at the right thing. I tested positive for covid almost 2 weeks ago so not sure an infection like covid can make this go up....bc all other tests are within range

And, any other blood test markers for crohns?

9/6/245:30 PM

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Former Member

The only test I am familiar with is the Prometheus test that test for crohns or ulcerative colotis

9/6/2410:14 PM

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Scott FMember

The Prometheus test is the only blood test that purports to distinguish between Crohn’s and UC. It’s not very reliable. The distinction often isn’t very important - in my case they never actually figured it out. If you have active inflammation it should be treated, of course. CRP can help assess inflammation, and there are a variety of other tests that also can help with that. Unfortunately they can disagree.

9/6/2411:03 PM

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JaypeaMember

CRP is merely a marker for inflammation. It could be high for any number of reasons. I once had a CRP of over 300 and the doctors never did find out why. I was fine two weeks later!

9/7/242:46 PM

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