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Test Code HIVGRR HIV Genotypic Resistance Assay

Clinical System Name

HIV Genotypic Resistance Assay



Sample Requirements

Specimen: Whole blood

Container(s): Lavender/EDTA or Red

Preferred Vol: 6.0 mL

Minimum Vol: 4.0 mL


Note: Do not send if HIV load <200 copies. Deliver to Lab ASAP.

Processing Instructions

Reject due to:

Spin: Y

Aliquot: Y

Temp: -70 C

Storage location: Specimen needs to be processed within 24 hours. Spin blood, transfer  2 mL plasma/serum to a plastic aliquot tube affixed with a large computer label. 

Monday – Friday: Place sample in the Virology Section of the Sendouts Freezer Rack.

Saturday-Sunday & Holidays: Close batch in Mayo Access and courier to Virology. Place a copy of the Transfer List (indicate time sent) in the Virology Transport Binder. (Call on Holidays to be sure the lab is open to accept samples).


Off-site collection: Spin & aliquot serum & freeze at -70 C. Transport on dry ice.


Specimen Type Temperature Time
  Room temp






STAT Performed TAT
N Collected daily; performed T  14 - 21 d


Performing Laboratory

University of Washington

Dept of Laboratory Medicine

UW Virology Lab

1959 NE Pacific St, NW220
Seattle, WA 98195


Phone Number: (206) 520-4600


Department:  Send Outs

Phone Number: (206) 987-2563

Reference Range

Interpretive report provided.


Method: PCR + Sequencing

Analytical Volume: None specified


CPT Codes


Send Out Instructions


Reference Test Name: HIV Genotypic Resistance Assay
Reference Test Number:



Send out M - F with the UW courier. Weekends and Holidays courier on dry ice to UW NW220.