absolute leukocytosis

ab·so·lute leu·ko·cy·to·sis

an actual increase in the total number of leukocytes in the circulating blood, as distinguished from a relative increase (such as that observed in dehydration).
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Results of a complete blood cell count revealed absolute leukocytosis (67 500 cells/[micro]L; reference interval [mean [+ or -] SD], 22 600 [+ or -] 11 120 cells/[micro]L) characterized by marked heterophilia (39 825 cells/[micro]L; reference interval, 9892 [+ or -]4813 cells/[micro]L), and mild lymphocytosis (27 675 cells/[micro]L; reference interval, 9755 [+ or -] 8352 cells/[micro]L), which corresponded to the severe tissue inflammation of the right wing.
A widely accepted but underinvestigated dictum holds that the very young and the very old may have a clinically significant leftshifted diff without demonstrating absolute leukocytosis.