
CD8 Count near me in New Delhi









The CD8 Count test measures the number of CD8+ T cells in the blood. CD8+ T cells are a type of white blood cell (WBC) that helps the immune system fight off infections. This test is commonly used to monitor the immune system, especially in individuals living with human immunodeficiency virus (HIV) infection. It is widely available with Tata 1mg labs at an affordable price in New Delhi.
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.








What does CD8 Count measure?
The CD8 Count test measures the number of CD8+ T cells (also called cytotoxic T cells) in one microliter (µL) of the blood. CD8+ T cells help the body fight infections and certain types of cancer. They work by identifying and directly destroying cells that are infected by viruses or have become abnormal, such as cancerous cells.
CD8+ T cells are activated when they recognize abnormal proteins on the surface of infected or damaged cells. Once activated, they release substances that kill these target cells, helping to control infections and prevent the spread of disease.
Abnormal CD8 counts can signal changes in the immune system. Higher-than-normal levels may indicate an active immune response to infections, inflammation, or certain immune-related disorders. Lower-than-normal levels can suggest a weakened immune defense, which may make you more vulnerable to infections and certain diseases. Monitoring CD8 counts over time can help doctors evaluate immune function, track recovery after illness or treatment, and guide decisions for managing immune-related conditions.





FAQs related to CD8 Count in New Delhi
- Kalia V, Sarkar S, Ahmed R. CD8 T-Cell Memory Differentiation during Acute and Chronic Viral Infections. In: Madame Curie Bioscience Database [Internet]. Austin (TX): Landes Bioscience; 2000-2013. Available from:
- Zhang C, Hu W, Jin JH, Zhou MJ, Song JW, Deng JN, Huang L, Wang SY, Wang FS. The role of CD8 T cells in controlling HIV beyond the antigen-specific face. HIV Med. 2020 Dec;21(11):692-700. [Accessed 12 Aug. 2025]. Available from:
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