Stanford Hospital & Clinics and Lucile Packard Children’s Hospital
Test Name : HIV Antigen/Antibody Screen Order Code : HIVAA
Note: The HIV Antigen/Antibody Screen allows for the simultaneous detection of HIV-1 p24 antigen and antibodies to HIV-1 (group M and group O) and HIV-2. Screen positive samples will be reflexed by the laboratory to a confirmatory immunoassay that differentiates anti-HIV-1 and anti-HIV-2 antibodies.
Synonyms: Human Immunodeficiency Virus antibody, HIV antibody, 4th Generation HIV, HIV 1/2
Specimen Type: Preferred: Serum; Acceptable: Plasma
Container Type: Preferred: SST Gold-top gel tube; Acceptable: Red-top tube (plain) no additive, Lavender-top tube (EDTA), Green–top tube (Sodium heparin), Mint-top (gel) tube (Lithium heparin), Yellow-top tube Acid Citrate Dextrose (ACD), Solution A
Required Volume: 3 mL whole blood; 1.5 mL serum or plasma
Minimum Volume (Pediatric): 3 mL whole blood; 1 mL serum or plasma
Methodology: Immunoassay
Standard Run Times: Mon-Fri
Turnaround Time: 3 days
Special Handling: Transport whole blood or centrifuged sample refrigerated. Primary tube is preferred. Serum or plasma transferred to an appropriately labeled tube acceptable. Sample is stable for 7 days refrigerated at 2-8C.
CPT Codes: 87389
Causes For Rejection: Excessive hemolysis, lipemia, gross bacterial contamination
Department: Special Chemistry