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PrEP HIV-1/2 Antigen and Antibodies, Fourth Generation, Screen and HIV-1 RNA
Test Code13590
CPT Codes
87389, 87535
Includes
PrEP HIV-1/2 Antigen and Antibodies, Fourth Generation, Screen
PrEP HIV-1 RNA, Qualitative Real-Time PCR
PrEP HIV-1 RNA, Qualitative Real-Time PCR
Preferred Specimen
3 mL serum
Minimum Volume
2 mL
Other Acceptable Specimens
Plasma collected in: EDTA (lavender-top) tube
Instructions
Serum: Collect in a serum separator tube or red-top tube (no gel). The tube should be centrifuged after clotting. Spun serum separator tubes may be submitted at room temperature or refrigerated unopened without transfer to a plastic, screw-cap vial. Red-top tube (no gel) serum should be transferred to a plastic, screw-cap vial and submitted for testing.
Plasma: Collect in an EDTA (lavender-top) tube and centrifuge tube within 24 hours of collection. Transfer plasma to a plastic, screw-cap vial, label as plasma, and submit for testing.
Submitted tubes must be labeled with patient identifier and submitted only for HIV testing.
Transport Container
Transport tube
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 72 hours
Refrigerated: 5 days
Frozen: 30 days
Refrigerated: 5 days
Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Frozen specimens submitted in original collection container
Methodology
Immunoassay (IA) • Real-Time Polymerase Chain Reaction
Setup Schedule
Set up: Mon-Sat; Report available: 2-3 days
Reference Range
PrEP HIV 1/2 Ag and Ab, Fourth Gen, Screen | Non-Reactive |
PrEP HIV 1 RNA, QL Real Time PCR | Not Detected |
Clinical Significance
This profile is for clinician determination of HIV status for PrEP provision for patients with recent or ongoing antiretroviral prophylaxis use. If the patient has taken oral PrEP within the last 3 months or has received cabotegravir in the past 12 months, then both an HIV Antibody/Antigen assay and an HIV-1 Qualitative Nucleic Acid Amplification test (NAAT) are indicated. Results are utilized to monitor patients who are HIV-1 negative and currently on oral or injectable PrEP and to inform ongoing patient management.
Please refer to the U.S. Public Health Service "Preexposure Prophylaxis for the Prevention of HIV Infection in the United States - 2021 Update Clinical Practice Guideline" for additional information.
Please refer to the U.S. Public Health Service "Preexposure Prophylaxis for the Prevention of HIV Infection in the United States - 2021 Update Clinical Practice Guideline" for additional information.