This article was reviewed by Felix Gussone, MD. In this guide, we’ll break down what most biomarker lab tests measure, how to prepare for them, and what to do once you receive your results. Not ...

An absolute neutrophil count (ANC) is a laboratory test that measures the amount of a specific white blood cell—called a neutrophil—in a sample of blood. In a healthy adult, 2,500 to 7,000 is ...