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Test Code HIVB HIV-1 and HIV-2 Ag and Ab Evaluation

Performing Laboratory

Hunterdon Medical Center Laboratory

Useful For

This screening test detects the HIV-1 p24 antigen as well as antibodies to HIV-1 and HIV-2. Antibodies to HIV can be detected 6-12 weeks after infection. The HIV p24 antigen can usually be detected 6 days prior to a positive antibody response, if the viral load is sufficient.

Specimen Requirements

 

Container/Tube SST
Specimen Volume 3.0mL
Minimum  Volume 1.0mL

 

Specimen Type

Serum

Transport Temperature

Ambient

Specimen Stability

 

Temperature Time Frame
Ambient 15-25°C 7 days
Refrigerated 2-8°C 7 days

Updated June 2020 

Days Test(s) set Up

Monday through Sunday

Reference Values

Non-Reactive. A non-reactive result does not completely rule out the possibility of an infection with HIV.

Testing Algorithm

If HIV1/2 is reactive,  HIV-1/2 Antibody Confirmation/Differentiation will be ordered at an additional charge. Reactive HIV-1/2 antigen and antibody screening test suggests the presence of HIV-1 and or HIV-2 infection;  it is not diagnostic for HIV infection and should be considered preliminary. 

Reflex Tests

 

Test ID Reporting Name Available Separately Always Performed
HIVDI HIV AB Confirm/Differentiation, Serum     No Reflex only No

Methodology

ECLIA

CPT Code

 

CPT Code Test
87389 HIV1/2 Ag&Ab Eval
86701 HIV-1  Antibody (Reflex)
86702 HIV-2 Antibody (Reflex)

Loinc Code

 

LOINC Code Test
568881 HIV1/2 Ag&Ab Eval
68961-2 HIV-1  Antibody (Reflex)
81641-3 HIV-2 Antibody (Reflex)