Neutrophil disorders

Neutrophilia is defined as a higher neutrophil count in the blood than the normal reference range of absolute neutrophil count and can be seen in infections, inflammation, and/or neoplastic processes. Further evaluation is often necessary. Causes of neutrophilia are classified into the following categories:

• Factitious neutrophilia; neutrophilia due to various artifacts encountered during blood sample handling in laboratory settings
• Primary Neutrophilia; neutrophilia due to abnormal increased neutrophils production by bone marrow due to impaired neutrophil production regulation.
• Secondary Neutrophilia; reactive neutrophilia can respond to a wide variety of stimuli such as infection, inflammation and medication.