What is the significance of C-reactive protein levels in appendicitis?

Updated: Jul 23, 2018
  • Author: Sandy Craig, MD; Chief Editor: Barry E Brenner, MD, PhD, FACEP  more...
  • Print
Answer

C-reactive protein

  • CRP levels >1 mg/dL are common in patients with appendicitis

  • Very high levels of CRP in patients with appendicitis indicate gangrenous evolution of the disease, especially if it is associated with leukocytosis and neutrophilia

  • In adults who have had symptoms for longer than 24 hours, a normal CRP level has a negative predictive value of 97-100% for appendicitis [3, 4, 5]


Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!