Wound, Ostomy and Continence Nurses Society (WOCN) Practice Exam

What white blood cell count is considered abnormal in necrotizing fasciitis?

1. Below 4,500

2. Between 4,500 and 11,000

3. Between 14,000 and 15,000

4. Above 20,000

The correct answer is: Between 14,000 and 15,000

In cases of necrotizing fasciitis, a white blood cell count that exceeds 20,000 is often indicative of a significant, acute infectious process. High white blood cell counts reflect the body's immune response to severe infections, specifically the body's attempt to combat extensive tissue damage and the presence of pathogens. Necrotizing fasciitis is a rapidly progressing infection that can result in systemic involvement, leading to a pronounced increase in leukocytes, particularly neutrophils, as part of the inflammatory response. While counts in the range of 14,000 to 15,000 may indicate some level of infection or inflammation, they are not as definitive for necrotizing fasciitis as counts above 20,000. Therefore, a count above 20,000 serves as a key clinical indicator for this severe condition and helps clinicians in assessing the severity and urgency of the disease.