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HelpTest Code HIVS HIV Antigen-Antibody
Laboratory Code
LAB473
Specimen Requirements
Specimen Type: Serum
Container/Tube: Gold Top (SSTII) / Red Top
Volume: 5.0 mL / 6.0 mL blood
Minimum Volume: 1.5 mL serum
Collection Instructions: Allow specimen to clot for 30 mins and centrifuge within 2 hrs
Specimen Stability
| Specimen type | Serum |
|---|---|
| Ambient | 3 days |
| Refrigerate | 2 weeks (preferred) |
| Frozen | 8 months |
Methodology
Chemiluminescent Immunoassay
Days and Times Performed
Monday through Friday, TAT 3 - 11 days
Specimen Condition
| Gross Haemolysis | Reject |
|---|---|
| Icterus | OK |
| Lipaemia | OK |
| Others | Not applicable |
Reference Interval
Non-reactive
Reflex Testing
Samples screened reactive for HIV are dispatched for confirmatory testing and screening results will be released with confirmed results when they are available.
Referring Laboratory
National University Hospital
Clinical Chemistry, 67724346
Testing Laboratory
Department of Pathology
Singapore General Hospital
Outram Road
Singapore 169608
63214950
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
To detect the presence of HIV-1/HIV-2 group O antibody and p24 antigen which is associated with AIDS.
Service Code
31746
LOINC Code Information
56888-1
Alias
HIV-1/-2 Ag/Ab
HIV-1/-2 Ag and Ab
Update
Last updated 21/02/2025