This panel contains the following tests:
- Absolute CD4 helper/inducer T cells (CD3+CD4+)
- Absolute CD8 suppressor/cytotoxic T cells (CD3+CD8+)
- Absolute lymphocyte count
- Absolute T cells (CD3)
- CD4:CD8 ratio
- CBC with differential and platelet count
This test evaluates and compares two important parts of the immune response. T-lymphocyte helper cells (such as CD4 cells) play a critical role in orchestrating the response to infections. Without T-helper cells, many of the other immune cells are not able to activate and fight infection. Proper activation of these immune cells is necessary for a strong immune response.
After activation of the immune response, T-lymphocyte suppressor cells (such as CD8) deactivate the immune cells fighting the infection. It is important to control and manage the immune response. An over-active immune system can lead to tissue damage and auto-immune disorders.
Additionally, the test measures the relationship between T-helper cells and T-suppressor cells. The relationship is measured as a ratio between immune system activation and deactivation.
Fasting is not required for this test. Take all medications as prescribed.