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Test Code FPHIV Phenosense HIV Drug Resistance Replication Capacity

Reporting Name

Phenosense HIV

Useful For

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

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 Volumes: 3 mL

Collection Instructions: Draw blood into two 5-mL PPT (pearl top) or EDTA (lavender top) tubes. Centrifuge specimen within 6 hours of collection. Transfer plasma to one or more polypropylene screw-capped tube(s) and freeze. Freeze immediately. Send 3 mL plasma in a screw-cap vial 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 two weeks prior to submission for testing at Monogram.

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


Specimen Minimum Volume

1 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Plasma EDTA Frozen 14 days

Reject Due To

Other PPT not centrifuged; insufficient volume; heparinized plasma; non frozen specimens; specimens exposed to repeated freeze/thaw cycles; specimen received in "pop-top" or "snap- cap" tube

Reference Values

A final report will be attached in MayoAccess.

Day(s) Performed

Sunday through Saturday

CPT Code Information

87903

87904 x12

LOINC Code Information

Test ID Test Order Name Order LOINC Value
FPHIV Phenosense HIV 49665-3

 

Result ID Test Result Name Result LOINC Value
Z1042 Phenosense HIV Unable to Verify

Report Available

18 to 26 days