What are the Methods for Measuring CD4 Cell Counts?
The most common method for measuring CD4 cell counts is flow cytometry. This technique uses fluorescently labeled antibodies that bind specifically to CD4 receptors on the surface of T cells. The cells are then passed through a laser, and the fluorescence intensity is measured, providing an accurate count of CD4 cells. Other methods include immunocytochemistry and ELISA, but flow cytometry remains the gold standard due to its precision and reliability.
