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HelpTest Code YMDD Hepatitis B Virus (HBV) Polymerase DNA Genotypic Resistance (YMDD)
Specimen Requirements
Specimen Type: Plasma
Container/Tube: Lavender Top (EDTA)
Minimum Volume: 2.0 mL blood
Specimen Stability
| Specimen Type | Plasma |
|---|---|
| Ambient | Not available |
| Refrigerate | 3 days |
| Frozen | Not available |
Days and Times Performed
Monday through Friday, TAT 5 - 35 days
Reference Interval
Wild, Mutant or Coexistence of Wild and Mutant type detected. The mutation will be described.
Referring / Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Testing Laboratory
Department of Pathology
Singapore General Hospital
Outram Road
Singapore 169608
63214950
Useful For
To detect mutations or polymorphisms at codons 80, 173, 180, 181, 184, 194, 202, 204, 236 and 250 of the HBV polymerase gene. Mutations at these positions may confer resistance of HBV to antiviral drugs such as lamivudine, telbivudine, emtricitabine, adefovir, tenofovir and entecavir.
Service Code
36989
Update
Last updated 10/12/2024