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Test Code RMCHIVABAG HIV Ab 1/2 & p24 Ag*

Important Note

*This test is orderable in Cerner as HIV Ab 1/2 & p24 Ag

For the qualitative determination of Human Immunodeficiency Virus (HIV) p24 antigen and antibodies to HIV Type 1 (HIV-1 group M and group O) and/or Type 2 in serum.

Specimens that are considered initially reactive for antibodies to HIV-1 and/or HIV-2 will be retested in duplicate. If one or both of the duplicates are reactive, the specimen is considered repeatedly reactive and will be sent out for confirmatory testing.

An individual who has antibodies to HIV is presumed to be infected with the virus; however, an individual who has participated in an HIV vaccine study may develop antibodies to the vaccine and may or may not be infected with HIV. Clinical correlation is indicated with appropriate counseling, medical evaluation, and possibly additional testing to decide whether a diagnosis of HIV infection is accurate.

Specimens that are initially reactive are considered negative for HIV-1/HIV-2 antibodies if both of the duplicates retest as nonreactive.

Methodology

Chemiluminescent Competitive Immunoassay

Performing Laboratory

Rutland Regional Medical Center Laboratory

Specimen Requirements

Specimen Type: Serum  

Container/Tube: SST Gold Top (Preferred) or Red Top (Acceptable)

Specimen Volume: Full tube

Specimen Minimum Volume: 0.5 mL serum Collection Instructions: If pre-processing before sending to the Lab: Allow to clot 30 minutes, (but not longer than 24 hours), centrifuge, refrigerate and return to the Lab.

Specimen Transport Temperature

Specimens should be processed as soon as possible after collection.

If prompt analysis is not possible, specimen is stable 24 hours at room temperature.

Specimen is stable refrigerated 7 days, if serum is separated from the clot or poured off into a separate tube.

 

Reference Values

Nonreactive

Day(s) Performed

Monday - Friday

Analytical Time:

1 day

Test Classification and CPT Coding

CPT: 87389

LOINC: 56888-1

Order Code: RMCHIVABAG

Result Code: RMCL801916

Result Name: HIV Antibody (1/2)