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Test Code LAB90237 Phenosense Combination HIV Drug Resistance Assay

Additional Codes

FPGT

47140

Reporting Name

Phenosense GT

Performing Laboratory

Monogram Biosciences, Inc

Specimen Type

Plasma EDTA


Ordering Guidance


This procedure should be used for patients with documented HIV-1 infection and viral loads =500 copies/mL.



Specimen Required


Specimen Type: Plasma

Container/Tube: Lavender-top (EDTA) or plasma preparation tube (PPT)

Specimen Volume: 3 mL

Collection Instructions: Draw blood in either PPT (pearl top) or lavender-top (EDTA) tubes. Centrifuge specimen within six hours of collection. Remove plasma from cells immediately, and transfer specimen to a screw-capped, plastic vial. Freeze 3 mL of PPT plasma or EDTA plasma immediately, send specimen frozen.

 

To avoid delays in turnaround time when requesting multiple tests, please submit separate frozen specimens for each test requested.

 

RECOMMENDED:

1.     Patient's most recent viral load.

2.     Viral load collection date.

 

NOTE:  1. Intended for use only for patients with viral loads greater than or equal to 500 copies/mL. For best results, viral loads should be confirmed within 2 weeks prior to submission for testing at Monogram.

            2. Patient samples submitted <30 days apart are considered duplicate and will be cancelled.


Specimen Minimum Volume

1 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Plasma EDTA Frozen 14 days

Reference Values

A final report will be attached in MayoAccess.

 

Day(s) Performed

Sunday through Saturday

CPT Code Information

87900/Infectious agent drug susceptibility phenotype prediction

87901/Infectious agent genotype analysis by nucleic acid; reverse transcriptase and protease

87903/Infectious agent phenotype analysis by nucleic acid with drug resistance tissue culture analysis; first through 10 drugs tested

87904/x12 Each additional drug tested

LOINC Code Information

Test ID Test Order Name Order LOINC Value
FPGT Phenosense GT Not Provided

 

Result ID Test Result Name Result LOINC Value
Z1043 Phenosense GT Not Provided

Report Available

18 to 26 days

Method Name

Phenotype: polymerase chain reaction (PCR) amplification and viral culture; genotype: polymerase chain reaction (PCR) and DNA sequencing.

Useful For

Determines viral phenotype and genotype resistance to three classes of commonly prescribed antiretroviral drugs: nucleoside reverse transcriptase inhibitors (NRTI), nonnucleoside reverse transcriptase inhibitors (NNRTI), and protease inhibitors (PI). Viral replication capacity is also included.