Test Overview
Test Methodology

Polymerase Chain Reaction (PCR)

Test Usage

The high replication rate of HIV-1 coupled with its rapid mutation rate drives the accumulation of mutations, some of which confer reduced susceptibility to antiretroviral agents. HIV-1 Genotyping identifies mutations in the HIV-1 reverse transcriptase and protease genes. Genotyping can be used to identify mutations associated with current or evolving resistance and monitor transmission of drug-resistant HIV-1.

Reference Range *

Interpretive report provided.

Test Details
Days Set Up
Monday - Saturday
Analytic Time

14 days

Soft Order Code
MiChart Code
HIV-1 Genotyping, Plasma
  • HIV-1 GenotypR PLUS
  • Human Immunodeficiency Virus Type 1 Genotype
  • HIV Genotype
  • Protease Inhibitors (HIV-1)
  • Reverse Transcriptase Inhibitors (HIV-1)
  • HIVG
  • HIV Genotypic Reisistance
Reference Laboratory
Warde HIVG (Quest Valencia 34949)
Special Testing
Specimen Requirements

Collect specimen in a lavender top or ACD (solution B) tube. Centrifuge, aliquot plasma into a plastic screw-cap vial and freeze within 24 hours of collection.

Alternate Specimen
Serum is acceptable for Genotyping but may observe a reduced viral quantitation value. Collect blood in sterile tubes with no anticoagulants; serum separator tubes (SSTs) are recommended. Allow blood to clot at room temperature and separate serum from cells within 2 hours of collection. Transfer serum to sterile, plastic screw-capped, aliquot tubes and store at -18 C or colder.
Normal Volume
2 mL EDTA or ACD plasma
Minimum Volume
0.6 mL EDTA or ACD plasma
Additional Information

Test sent to Warde Medical Laboratory; performed by Quest Diagnostics Nichols Institute of Valencia.

CPT Code
Fee Code
NY State Approved