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Test ID FPGT Phenosense Combination HIV Drug Resistance Assay

Method Name

Polymerase Chain Reaction (PCR)

Reporting Name

Phenosense GT

Specimen Type

Plasma EDTA

Specimen Required

Draw blood into two 5 mL PPT (pearl top) or EDTA (lavender top) tube(s). Immediately centrifuge (within 2 hours of collection) at 1000 – 1200 x g at room temperature for 10 – 15 minutes. Do not allow samples to remain in centrifuge after centrifugation. Remove plasma from cells immediately and transfer to a plastic screw cap tube. Freeze immediately. Send 3 mL plasma in a screw-cap vial frozen.



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

Reference Values

A final report will be attached in MayoAccess.


Day(s) Performed

Monday through Friday

Performing Laboratory

Monogram Biosciences, Inc

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

14 to 21 days

NY State Approved