Hepatitis B Virus (HBV) Genotyping Plus Drug Resistance-994

Test info

  
Hepatitis B Virus (HBV) Genotyping Plus Drug Resistance
  
994
  
LAB994
  
MSO
  
HBV Genotype
PreCore and Resistance HBV Resistance Testing
  

Data generated in the genotyping assay is subsequently analyzed for mutations in the reverse transcriptase gene of HBV associated with resistance to therapeutic agents, and if identified an interpretation of their clinical significance provided.

  

This assay may not be successful when the HBV viral load is <500 IU/mL

Specimen

  
Plasma
  
  
1.2 mL
  
0.6 mL
  

Immediatley following collection, mix sample by inverting 5 times

  
  • Centrifuge sample within six hours of collection

  • Transfer plasma or serum to a Labcorp transport vial and freeze
  
  
Serum or plasma
  

Gold serum separator (SST) tube

or

Yellow ACD (A or B)

 

  
  • Immediatley following collection, mix sample by inverting 5 times
  
  • Allow SST to clot for 30 minutes before spinning
  • Centrifuge sample within six hours of collection

  • Transfer plasma or serum to a Labcorp transport vial and freeze
  

Frozen (preferred) – 14 days

Refrigerated- not accepted

Ambient - not accepted

  
  • Quantity not sufficient for analysis
  • Heparin/SPS plasma (wrong anticoagulant)
  • Gross hemolysis
  • Specimen not frozen

Performance

  
LabCorp (551750) R-LC
  
2 times per week
  
12 days
  

Polymerase chain reaction (PCR) amplification and DNA sequencing

Clinical and Interpretive info

  

An interpretive report will be provided

Billing

  
87900
87912

Tracking

  
08/26/2022
  
08/26/2022