Description
Why It’s Done
The ANC test is primarily used to:
• Assess immune system function, especially in people undergoing chemotherapy or radiation therapy
• Monitor bone marrow function
• Evaluate risk of infection
• Diagnose and monitor disorders such as:
o Neutropenia (low neutrophil count)
o Bone marrow disorders
o Autoimmune diseases
o Severe infections
o Leukemia
Low ANC (Neutropenia): May increase the risk of infection
High ANC: May indicate infection, inflammation, stress, or leukemia
Preparation for the Test
• Fasting: Not required. You can eat and drink as usual unless advised otherwise.
• Medications: Inform your doctor about all medications, supplements, or recent treatments (e.g., chemotherapy), as they can affect the neutrophil count.
• No special preparation is typically needed


