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Test Code HIV HIV Ab and Ag,w/Cnf

Additional Codes

  • Expanse Test Name: HIV Ab and Ag,w/Cnf
  • Medinet Ref Code:HIV
  • OV Code:CHEM*HIV

Performing Laboratory

St. Lukes Hospital Laboratory

Methodology

Chemiluminescence

This method detects antibodies to  HIV 1 and 2 as well as p24 antigen.  If the test is reactive, the test is referred for differentiation.

Specimen Requirements

Potassium EDTA plasma is the recommended sample type for this assay (due to reflexive testing requirements).

Draw blood in a Pink EDTA tube(s). Spin down within 24 hours of draw, and send 2 mL of plasma refrigerated. Separated samples may be stored refrigerated up to 14 days.

 

Unspun specimens must be transported at ambient temperature and arrive to the laboratory within one hour of draw.

Reference Values

Nonreactive

Positives are are sent to Mayo for Confirmation via the attached algorithm.

Mayo's HIV Testing Algorithm

Day(s) Test Set Up

All days of the week

Test Classification and CPT Coding

CPT: 87389 - HIV-1 antigen with HIV-1 and HIV-2 antibodies, single result