Neutrophil Count (Absolute)

What Neutrophils Do in Your Body

Neutrophils are a type of white blood cell that play a critical role in your immune response. They help identify and destroy bacteria, preventing infections from spreading. When you have an infection or inflammation, your body often produces more neutrophils to fight it. This test helps doctors understand how well your immune system is responding to these challenges.

When This Test Might Be Ordered

Doctors may order an absolute neutrophil count to check for infections, monitor immune function, or evaluate conditions like leukemia, autoimmune diseases, or severe infections. It’s also used before certain treatments that might lower your white blood cell count, such as chemotherapy.

What to Expect Before the Test

This test is usually done by taking a small blood sample from a vein in your arm. You may feel a slight pinch, but it’s quick and painless. No special preparation is needed unless your doctor instructs otherwise.

What the Results Mean

Results are compared to your baseline or to what’s typical for healthy adults. Very low neutrophil counts (below normal) can increase your risk of infections, while very high counts may suggest inflammation or other health issues. Your doctor will discuss the results with you in the context of your overall health.