The HIV Ag/Ab Combo test detects both HIV antibodies and the p24 antigen in the blood. It is the recommended initial screening test for HIV infection.
Category: Infectious Disease
Also known as: hiv ag/ab, hiv antigen antibody, hiv combo, hiv 1/2 ag/ab, hiv test, hiv screen, hiv p24 antigen antibody
Reference range: 0–1 S/CO (Source: ABIM)
Standard unit: S/CO
High values may indicate
A positive (reactive) result indicates possible HIV infection. Confirmatory testing is required to confirm the diagnosis.
Low values may indicate
A negative (non-reactive) result means no HIV antibodies or antigens were detected, indicating no current HIV infection (assuming adequate time since potential exposure).