HIV P24 ANTIGEN, SERUM

An HIV p24 antigen test is a blood test that detects the HIV p24 antigen, a protein in HIV that's essential for the assembly of the capsid that encases HIV's genetic material.The p24 antigen test is used to diagnose early HIV infection, when HIV-specific antibodies are not yet detectable. It's also used to monitor HIV in adults and children, and to predict CD4+ T cell decline