Complete Blood Count (CBC) with Differential and Monocyte Subset Analysis

What Is a Complete Blood Count (CBC)?

A CBC is a standard blood test that provides key information about your blood’s composition, including red blood cells (for oxygen transport), white blood cells (for immunity), and platelets (for clotting). This test also includes a differential count, which breaks down the types of white blood cells, including monocytes, to help identify specific health concerns.

Why Might You Need This Test?

Your doctor may order this test to check for infections, inflammation, anemia, or blood disorders. Monocyte subset analysis can help pinpoint whether an infection or immune response is affecting your body, especially if symptoms like fatigue, fever, or unexplained swelling persist.

How Is This Test Performed?

A small blood sample is drawn from a vein, usually in your arm. The sample is then analyzed in a lab to measure the total number of white blood cells and their subtypes, including monocytes. Advanced techniques may further classify monocytes into subsets based on their size, shape, or functional markers.

What Do the Results Mean?

Results show your total white blood cell count, percentage of each type (including monocytes), and sometimes a breakdown of monocyte subsets. Elevated or low monocyte counts may signal infections, autoimmune diseases, or other conditions that require further medical evaluation.