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Test Code HBVGDR Hepatitis B Genotype + Drug Resistance

Clinical System Name

Hepatitis B Genotype + Drug Resistance



Sample Requirements

Specimen: Whole blood

Container(s): Lavender/EDTA or Red or Gold SST

Preferred Vol: 3.0 mL

Minimum Vol:  1.5 mL


Note: This test can share a tube with other Viral PCR testing but a separate tube needs to be collected if Hematology (CBC, Platelet, ESR, etc) testing is ordered.

Processing Instructions

Reject due to: Dark Green/Sodium Heparin tube

Spin: Y

Aliquot: Y

Temp: -20 C

Storage location: Spin blood, transfer 1 mL plasma 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 sample, freeze serum in plastic aliquot container. Ship frozen.


Specimen Type Temperature Time
Whole blood Room temp

< 2 h

  Refrigerated 24 h


Plasma samples are stable 2-4 hours Room Temp and 48 hours Refrigerated.


STAT Performed TAT
N Collected daily; performed T 1 - 5 d


Performing Laboratory

University of Washington

Dept of Laboratory Medicine

UW Molecular 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

Reference values accompany patient report.


Method: DNA Sequencing

Analytical Volume: None specified


CPT Codes

87912 x2

Send Out Instructions


Reference Test Name: HBV Genotype_Drug Resistance
Reference Test Number:



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