Hepatitis B Virus Genotyping
| Label Mnemonic: | HBVG |
| Epic code: | LAB3292 |
| Downtime form: | A-1a Doctor/Provider Orders - Pathology Core and Specialty Care Nursery |
Commercial Mailout Laboratory
6240-8 RCP
356-8593
6240-8 RCP
356-8593
Specimen(s):
Plasma
Collection Medium:
 |
| Pink top tube 6 mL (K2-EDTA) |
Minimum:
Preferred Minimum: 2 mL plasma
Plasma must be removed from cells within 24 hours.
Plasma must be removed from cells within 24 hours.
Rejection Criteria:
Heparinized specimens.
Delivery Instructions:
Submit specimen to laboratory as soon as possible after collection.Turn Around
Time:
within 10 days upon receipt at reference laboratory
Reference Range:
None
Interpretive Data:
Both the HBV RT polymerase and the HBsAg encoding regions are
sequenced. Resistance and surface antigen mutations are reported. In
addition, the eight major HBV genotypes (A, B, C, D, E, F, G and H)
are identified. Mutations in viral sub-populations below 20% of total
may not be detected.
Comments:
This test may be unsuccessful if the HBV viral load is less than log
3.0 or 1,000 IU/mL of plasma.
This mailout test requires pathologist approval for orders during inpatient encounters. Mailouts staff will not process order without approval. The pathologist covering mailouts approval can be reached at pager #3724. If approval is given, the name of the pathologist can be selected in the drop-down menu to the right of the approval warning in Epic when ordering the test.
This mailout test requires pathologist approval for orders during inpatient encounters. Mailouts staff will not process order without approval. The pathologist covering mailouts approval can be reached at pager #3724. If approval is given, the name of the pathologist can be selected in the drop-down menu to the right of the approval warning in Epic when ordering the test.
Methodology:
Polymerase Chain Reaction/Sequencing
CPT Code:
87912
See Additional Information:
Specimens Requiring Immediate Delivery
Specimens Requiring Immediate Delivery