How are C-reactive protein (CRP) cardiac markers characterized and what do they indicate?

Updated: Nov 20, 2018
  • Author: Donald Schreiber, MD, CM; Chief Editor: Barry E Brenner, MD, PhD, FACEP  more...
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C-reactive protein (CRP), a nonspecific marker of inflammation, is considered to be directly involved in coronary plaque atherogenesis. Extensive studies beginning in the early 1990s showed that an elevated CRP level independently predicted adverse cardiac events at the primary and secondary prevention levels.

Data indicate that CRP is a useful prognostic indicator in patients with ACS, as elevated CRP levels are independent predictors of cardiac death, acute MI, and CHF. In combination with TnI and BNP, CRP may be a useful adjunct, but its nonspecific nature limits its use as a diagnostic cardiac marker for ACS in the ED.

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