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Date Joined Mar 2010
Total Posts : 30
   Posted 6/30/2010 8:22 PM (GMT -7)   
Just wondering what is considered to be a normal, low, mild, high CRP level in relation to crohn's disease. I did read it somewhere but now can't find it.

Veteran Member

Date Joined May 2009
Total Posts : 506
   Posted 6/30/2010 8:35 PM (GMT -7)   
My doctor has the normal range as 0-8.0.
Diagnosed with CD July 2007
Currently on Remicade, Imuran, probiotics, folic acid, multivitamin.
Resection December 2009

Amor fati - Nietzsche

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Date Joined May 2003
Total Posts : 9448
   Posted 7/1/2010 9:29 AM (GMT -7)   
I believe CRP levels are one of the tests where the normal values or reference range can vary from lab to lab. Our lab currently has a reference range (normal) of 0 - .75.

CRP and ESR (Sed rate) levels are not exclusive results for Crohn's disease. They are simply an indication of inflammation SOMEWHERE in the body due to unknown cause.
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Date Joined Apr 2006
Total Posts : 1885
   Posted 7/5/2010 9:06 AM (GMT -7)   
Optimal CRP is be under 1.0. Anything over 2.5 or 3 is higher than normal...but even the high end of the normal range is problematic. Remember, "normal" doesn't mean healthy.:
"Using the Dade-Behring, Abbott, Beckman, and other assays, CRP levels are ≤0.3 mg/dL in 80%-90%, ≤0.5 mg/dL in 95%, and ≤1.0 mg/dL in 98%-99% of healthy individuals, respectively, but increased CV risk is observed within this "normal" range. The upper limit of normal typically reported by a laboratory is 0.25 mg/dL (2.5 mg/L), but estrogen may increase CRP levels"
The normal ranges for ESR (sed rate) are below:

Adults (Westergren method):

  • Men under 50 years old: less than 15 mm/hr
  • Men over 50 years old: less than 20 mm/hr
  • Women under 50 years old: less than 20 mm/hr
  • Women over 50 years old: less than 30 mm/hr
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