Collect: Lavender (EDTA) or plasma preparation tube.
Specimen Preparation: Separate PPT plasma from cells within 2 hours of collection. Separate EDTA plasma 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.
Remarks: Indicate patient's most recent viral load and viral load collection date on the test request form. If viral load is less than 500 copies, testing MAY NOT be performed.
Unacceptable Conditions: Thawed specimens.
Stability (collection to initiation of testing): Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen at -20°C: 2 weeks; Frozen at -70°C: Indefinitely
Reference Interval:
By report
CPT Code(s):
87900 Phenotype; 87901 Genotype; 87903 Phenotype with culture, 1-10 drugs; 87904 x11 Phenotype with culture, each additional drug