Which WBC count and neutrophilia levels suggest appendicitis?

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

tudies consistently show that 80-85% of adults with appendicitis have a white blood cell (WBC) count greater than 10,500 cells/µL. Neutrophilia greater than 75% occurs in 78% of patients. Less than 4% of patients with appendicitis have a WBC count less than 10,500 cells/µL and neutrophilia less than 75%.

Dueholm et al further delineated the relationship between the WBC count and the likelihood of appendicitis by calculating likelihood ratios for defined intervals of the WBC count. [23]


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