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HUMAN IMMUNODEFICIENCY VIRUS (HIV) ANTIGEN / ANTIBODY, SCREEN

Synonym(s):
Lab Section Category
Specimen Required

​5 mL plain blood.

Storage/Transport

​Samples must be double bagged using a plastic bag labelled “Biohazard"

Refrigerate samples if delay in transporting to laboratory is anticipated. Do not freeze.

Method

​Chemiluminescent Microparticle Immunoassay 

(HIV-1 Antigen and Antibodies to HIV type 1 and/or type 2)

Test Results

​Reported as Reactive, Equivocal or Non-Reactive

Turnaround Time

Routine screening non-reactive report : <1 – 2 days

Confirmation of reactive / equivocal results : 1 - 5 days

Day(s) Test Set up

​Screening : Monday – Saturday

Remarks

​If screened reactive / equivocal, reflex confirmation will be carried out for SGH sample.

Change History Notes

  • 14 Aug 2025 05:58 PM

    Added details in brackets to test method

  • 01 Apr 2022 12:00 AM

    ​Changed the TAT for confirmation of reactive / equivocal results.


  • 15 Sep 2021 12:00 AM

    ​Amended test results.

  • 31 May 2021 12:00 AM

    Amended test name.

Back: Pathology Laboratory Services

Last Updated - 14 Aug 2025