Test Overview
Test Methodology

Polymerase chain reaction (PCR) amplification and viral culture.

Test Usage

Phenotypic determination of the type of co-receptor (CCR5, CXCR4, or both) used by the patient's HIV-1 strain to enter host CD4+ cells (HIV-1 entry co-receptor tropism).

Reference Range *

Interpretive report provided

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Sunday - Saturday
Analytic Time

31-41 days

Soft Order Code
FFTRP
Synonyms
    Laboratory
    Sendout
    Reference Laboratory
    Mayo FFTRP (91774) (Monogram)
    Section
    Special Testing
    Specimen Requirements
    Collection Instructions

    Collect specimen in a lavender top or PPT (pearl top) tube. Centrifuge, aliquot plasma into a plastic vial within 2 hours of collection and freeze.

    Normal Volume
    3 mL EDTA plasma
    Minimum Volume
    1 mL EDTA plasma
    Storage Temperature
    Strict frozen
    Additional Information

    Test sent to Mayo Medical Laboratories; performed by Monogram Biosciences.

    Billing
    CPT Code
    87999
    Fee Code
    AA637
    NY State Approved
    No