Test Catalog

Test ID: HIVPR    
HIV-1 Genotypic Protease and Reverse Transcriptase Inhibitor Drug Resistance, Plasma

Testing Algorithm Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

See HIV Treatment Monitoring Algorithm in Special Instructions.

Specimen Type Describes the specimen type validated for testing

Plasma EDTA

Specimen Required Defines the optimal specimen required to perform the test and the preferred volume to complete testing

Collection Container/Tube: Lavender top (EDTA)

Submission Container/Tube: Plastic vial

Specimen Volume: 2.2 mL

Collection Instructions:

1. Spin down and remove plasma from cells within 6 hours of draw.

2. Freeze plasma specimen immediately, and ship specimen frozen on dry ice.

3. If shipment will be delayed for >24 hours, freeze plasma specimen at -70 degrees C (up to 35 days) until shipment on dry ice.

Additional Information:

1. This test is intended to be used to monitor known HIV-positive infections. It is not intended for primary detection of HIV infections.

2. Specimens submitted for HIV-1 genotyping should contain > or =500 copies/mL of HIV-1 RNA.

Special Instructions Library of PDFs including pertinent information and forms related to the test

Specimen Minimum Volume Defines the amount of sample necessary to provide a clinically relevant result as determined by the Testing Laboratory

1.2 mL

Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected


Mild OK; Gross OK


Mild OK; Gross OK




Green-top (heparin) tube

Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the performing laboratory, alternate acceptable temperatures are also included

Specimen TypeTemperatureTime
Plasma EDTAFrozen (preferred)35 days
 Refrigerated 24 hours