HIV-1/2 Antibodies and HIV-1 p24 Antigen Combo Tests 25/BoxRapid Point of Care 4th Generation HIV Test for Fingerstick Whole Blood by Abbott Rapid DX North America. The Abbott HIV 1 2 Antibodies and HIV 1 p24 Antigen Combo Test is the first FDA approved, rapid point of care test to detect both HIV 1 2 antibodies and free HIV 1 p24 antigen. Utilizing advanced 4th generation technology, this lateral flow immunoassay enables healthcare professionals to diagnose acute and established HIV infection earlier than