Test Directory
| Test Code | |
| TROFI | |
| Test Name | |
| Trofile | |
| CPT Codes | |
| 87999 | |
| Expected Turnaround Time | |
| 27 - 35 days | |
| Clinical Utility | |
|
Detect HIV-1 coreceptor tropism; determine eligibility for CCR5 antagonist therapy such as maraviroc (Selzentry®) |
|
| Specimen and Container Info | |
|
Preferred Specimen Type: Plasma
Preferred Collection Container: Lavender Top (EDTA) Alternate Collection Container: White Top (EDTA) Desired Specimen Volume: 3 mL |
|
| Collection Instructions | |
|
Collect specimen in four lavender top (EDTA) tubes or two white top tubes (plasma preparation tubes) via venipuncture. Centrifuge and transfer plasma to plastic aliquot tubes and freeze. |
|
| Transport Instructions | |
|
Transport to the laboratory frozen. |
|
| Causes for Rejection | |
| PPT™ not centrifuged; insufficient volume; heparinized plasma; nonfrozen specimen | |
| Methodology | |
| Polymerase Chain Reaction Amplification and Viral Culture | |
| Reference Intervals | |
|
See patient report. |
|
| Limitations | |
|
This procedure should be used for patients with documented HIV-1 infection and viral loads ≥1000 copies/mL. |
|
| Reference Lab | |
| Labcorp Of America Holdings |
The American Medical Association (AMA) Current Procedural Terminology (CPT) codes published by HNL Lab Medicine are guidelines and are intended for informational purposes only. CPT coding is the exclusive responsibility of the billing entity. View the Terms.
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