CD8 Absolute Count Unit Converter

CD8 Absolute measures the total number of CD8+ T cells (also called cytotoxic T lymphocytes) in a given volume of blood. These are a specialized type of white blood cell that plays a central role in your immune defense.

CD8+ T cells work by recognizing and destroying cells that have been infected by viruses or other intracellular pathogens, as well as cells that have become cancerous. They do this by binding to abnormal cells and releasing cytotoxic substances that trigger cell death.

The absolute count is often interpreted alongside the CD4 count and the CD4:CD8 ratio to give a fuller picture of immune function.

CD8+ T cells originate from stem cells in the bone marrow and mature in the thymus gland, where they learn to distinguish self from non-self. Once mature, they circulate in the blood and lymphatic system, ready to respond to threats.