Question: is 20 000 wbc high?
Answer: The WBC count may be elevated in patients with a normal appendix. Leukocytosis is noted in 70% to 90% of cases; it is usually mild to moderate (10,000 to 18,000/mm3), with polymorphonuclear predominance. A marked elevation >18,000 to 20,000/mm3 suggests rupture, phlegmon, or abscess.