Neutrophils are a particular type of white blood cell that helps fight infections.
Without enough neutrophils in the blood, a person is more susceptible to infections. ANC is the percentage of neutrophils circulating in the total white blood cell count. This makes the normal range for the ANC between 1500 and 7200. There are many reasons why someone may not have enough neutrophils. Treatment with chemotherapy may affect the amount of neutrophils, or someone can be born with no neutrophils or with a small amount.