Search our extensive Laboratory Test Directory to find test codes, ordering recommendations, specimen stability information, Test Fact Sheets, and more.
Recommendations when to order or not order the test. May include related or preferred tests.
Intended for use in patients with viral loads ≥1,000 copies/mL. HIV-1 phenotyping test to determine the tropism (ie, CCR5 or CXCR4) of the virus in patients being considered for CCR5 antagonist therapy.
Methodology
Process(es) used to perform the test.
Polymerase Chain Reaction/Culture
Performed
Days of the week the test is performed.
Varies
Reported
Expected turnaround time for a result, beginning when ARUP has received the specimen.
27-38 days
New York DOH Approval Status
Indicates test has been approved by the New York State Department of Health.
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect
Lavender (K2EDTA) or Plasma Preparation Tube (PPT).
Specimen Preparation
Separate from cells within 6 hours of collection. Transfer 3 mL plasma to an ARUP Standard Transport Tube and freeze immediately. (Min: 3 mL)
Storage/Transport Temperature
CRITICAL FROZEN.Separate specimens must be submitted when multiple tests are ordered.
Normal range/expected value(s) for a specific disease state. May also include abnormal ranges.
Interpretive Data
Background information for test. May include disease information, patient result explanation, recommendations, details of testing, associated diseases, explanation of possible patient results.
Compliance Category
Performed by non-ARUP Laboratory
Note
Additional information related to the test.
Procedure should be used for patients with documented HIV-1 infection and viral loads greater than 1000 copies/mL.
The American Medical Association Current Procedural Terminology (CPT) codes published in ARUP's Laboratory Test Directory are provided for informational purposes only. The codes reflect our interpretation of CPT coding requirements based upon AMA guidelines published annually. CPT codes are provided only as guidance to assist clients with billing. ARUP strongly recommends that clients confirm CPT codes with their Medicare administrative contractor, as requirements may differ. CPT coding is the sole responsibility of the billing party. ARUP Laboratories assumes no responsibility for billing errors due to reliance on the CPT codes published.
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
Other names that describe the test. Synonyms.
CCR5
Chemokine Coreceptor Tropism Trofile
CXCR4
Human Immunodeficiency Virus Type 1 (HIV-1) Trofile Co-Receptor Tropism
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