A raised white blood cell (leukocyte) count above the normal range is termed leukocytosis. It can be indicative of a wide variety of conditions, including viral, bacterial, fungal, or parasitic infection, cancer, hemorrhage, and exposure to certain medications or chemicals including steroids. The normal human adult leukocyte count is 4.4-10.8 x 109/L, and a count 10 times higher than that could certainly be considered above the normal range.
A leukocyte count above 25 to 30 x 109/L (if it is a physiologic response to stress or infection) is termed a leukemoid reaction.
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