Sign in →

Test Code LAB5567 HIV 1/2 AB & AG (4TH GEN)

Performing Laboratory

Asante Rogue Regional Medical Center

Specimen Minimum Volume

1.6 mL EDTA plasma (or 3 mL whole blood)

Billing Code

3001067

Specimen Requirements

Preferred: Lavender-Yellow_K2E EDTA K2

 

Acceptable: Lavender top tube

Specimen Transport Temperature and Stability

Centrifuge within 24 hours. Specimens are stable on packed cells or in a gel LST tube for 3 days at room temp, and 7 days at 2-8°C.

Reasons for Rejection

EDTA plasma only, no other sample type accepted

Samples exceeding storage requirements

Quantity not sufficient (QNS)

Lacking Two Patient Identifiers:

         1-Patient's First & Last name 

         2-Patient's Date of Birth

Day(s) Test Set Up

Daily

Performing Department

Chemistry

Methodology

Chemiluminescence

Additional Information

This is a 4th generation front-line screening test, recommended by the CDC, for the detection of exposure to HIV.  The addition of HIV-1 p24 antigen aids in early detection prior to antibody formation. 

The DiaSorin LiaisonXL CHIV assay is limited to the detection of p24 antigen and/or antibodies to HIV-1 and/or HIV-2 in human serum or plasma.  Repeatedly reactive samples will be referred to Mayo Medical Laboratories for HVDIP - HIV-1 and HIV-2 Antibody Confirmation and Differentiation, Plasma. The HVDIP test is for confirmation and differentiation of HIV-1/2 antibodies. If the following result types are obtained, then HIV-1 RNA detection and quantification will be performed at an additional charge:
-HIV-1 and HIV-2 both negative
-Indeterminate for HIV-1 and negative for HIV-2
-Negative for HIV-1 and indeterminate for HIV-2
-HIV-1 and HIV-2 both indeterminate

Heterophilic and HAMA antibodies in human samples can react with reagent antibodies, interfering with in vitro immunoassays. Patients routinely exposed to animals or animal serum products for diagnosis or therapies can be prone to this interference and anomalous values may be observed. Specimens from patients who have received mouse monoclonal antibodies for diagnosis or therapy may contain human anti-mouse antibodies and may interfere in assays that employ mouse monoclonal antibodies. Additional information may be required for diagnosis.

Test Classification and CPT Coding

87389