According to MedicineNet, the absolute neutrophil count is a laboratory test that indirectly measures the number of neutrophils in a patient's blood. The number of neutrophils is computed by multiplying the total white blood cell count by the percent of neutrophils in the differential white blood cell count.
According to MedicineNet, the normal range for neutrophils is 1.5 to 8.0. These blood compounds are immune cells that help fight off infections and pathogenic organisms. Patients who have too few neutrophils in their blood are said to be neutropenic. These patients are at risk of developing infections more frequently than the general population.