CD3 / CD4 / CD8 / CD45 Count

Your immune system is a complex network of cells that work together to protect you from illness. The CD3 / CD4 / CD8 / CD45 Count test focuses on different types of T-cells, which are a key part of this network. This test measures the levels of these cells by looking for specific markers on their surfaces.

• CD3: Found on all T-cells, this marker helps identify the total number of T-cells.
• CD4 (Helper T-cells): These cells help coordinate the immune response by activating other immune cells.
• CD8 (Cytotoxic T-cells): These "killer" cells are responsible for destroying infected or abnormal cells, such as those with viruses or cancer.
• CD45: This marker is present on all white blood cells, including T-cells. It helps identify and count the total number of lymphocytes.
• By measuring the percentages and absolute counts of these cells, as well as the CD4/CD8 ratio, your doctor can get a clear picture of your immune system’s health. Abnormal results can signal an underlying health issue. For instance, a low CD4 count is a known marker for HIV progression, while unusual ratios can be linked to autoimmune diseases or specific blood cancers.

Your doctor may suggest the CD3 / CD4 / CD8 / CD45 Count test if you have a condition that affects your immune system or if you are undergoing treatment that might suppress it. 

No special preparation is needed for the CD3 / CD4 / CD8 / CD45 Count test. You should inform your doctor about any medications you are taking, as some may affect the results.

Test result ranges are estimates and may vary slightly between labs depending on their methods and guidelines. Always consult a doctor to understand your report correctly.

Please note: This is an outsourced test. The sample for this test is collected by TATA 1MG and processed at a NABL accredited partnered lab.