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Regular Member

Date Joined Mar 2010
Total Posts : 30
   Posted 6/30/2010 9:22 PM (GMT -6)   
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 9:35 PM (GMT -6)   
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

Veteran Member

Date Joined May 2003
Total Posts : 9448
   Posted 7/1/2010 10:29 AM (GMT -6)   
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.
My computer says I need to upgrade my brain to be compatible with its new software.

Veteran Member

Date Joined Apr 2006
Total Posts : 1885
   Posted 7/5/2010 10:06 AM (GMT -6)   
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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