Leukocytos
Leukocytosis, also called leukocytos, is the rise in the number of white blood cells (leukocytes) in the peripheral blood. In adults, a total leukocyte count above about 11,000 cells per microliter is commonly used as a threshold for leukocytosis, though reference ranges vary by laboratory and age.
Most leukocytosis is reactive or physiologic, arising from infections, inflammatory or tissue injury, stress, strenuous exercise,
Leukocytosis is not a single disease but a sign. It is classified by the predominant leukocyte type:
Evaluation includes complete blood count with differential, peripheral smear, and targeted tests (cultures, imaging, serology) to
Management targets the underlying cause. Mild, asymptomatic leukocytosis may require no specific therapy beyond observation, while