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HIV differentiation

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$56 | CPT Code: 86689 | Serology Lab

Methodology

  • HIV-1/HIV-2 antibody differentiation immunoassay

Acceptable specimen(s)

  • This is for confirmatory testing only.
  • HIV differentiation is performed only after a reactive (positive) HIV combo antibody/antigen enzyme immunoassay (EIA) test.
  • Submit a patient sample for the HIV combo antibody/antigen EIA test.

Turnaround time

  • Five (5) business days. HIV differentiation results are reported with the HIV combo antibody/antigen EIA test.
  • Results will be available in LabOnline.

Supplemental information

immunoassay

 

Image credit: CDC HIV testing guidelines

The State Lab follows the HIV testing algorithm for serum or plasma specimens recommended by CDC. If a sample is reactive in the EIA test, but is negative or indeterminate for HIV-1 and negative for HIV-2 with HIV differentiation, then the sample will be tested with a FDA-approved HIV-1 nucleic acid test (NAT).

Contact information