CD8 Count

CD8+ T cells, also called cytotoxic T cells, are an important part of the immune system. They find and destroy cells infected by viruses and certain types of cancer cells. The CD8 absolute count test measures the number of these cells in the blood and helps doctors understand how well the immune system is working.

The CD8 Count test is recommended if the individual has been diagnosed with HIV infection or is living with HIV, has an immune system disorder, or is receiving treatments that can affect immunity, such as chemotherapy, immunosuppressive therapy, or organ transplantation. In the case of HIV, the CD8 count is usually assessed along with the CD4 count and the CD4/CD8 ratio. Changes in this ratio can help indicate how the disease is progressing or how well the treatment is working. This test is also useful for assessing overall immune system function, diagnosing or monitoring immune-related conditions, and evaluating the effectiveness of treatments for such disorders.

No special preparation is required for the CD8 Count test. However, provide a brief clinical history at the time of sample collection. Inform the doctor about all the medications (e.g., immunosuppressants, steroids, etc.) and supplements, underlying illnesses, as all these factors may affect the test results. 

Test result ranges are approximate and may differ slightly between labs depending on the methodology and laboratory guidelines. A high CD8 count may indicate an active immune response to infections or other triggers, while a low CD8 count may suggest a weakened immune defense. Always consult a doctor to interpret the results correctly and to decide on the next steps for treatment or monitoring.

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