Hepatitis B Virus Genotype, Plasma

Hepatitis B Virus Genotype

Order Code:	HBVG
Epic Lab Code:	LAB3292
Order Form:	A-1a Miscellaneous Request or Epic Req

Commercial Mail-out Laboratory
01250 PFP
356-3527

Specimen:

Plasma

Collection Medium:

Pink top tube

Minimum:

Preferred Minimum: 2 mL plasma
Absolute Minimum: 0.5 mL plasma

Plasma must be removed from cells within 24 hours.

Rejection Criteria:

Heparinized specimens.

Delivery Instructions:

Deliver to laboratory immediately after collection. Critical frozen.

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.

Methodology:

Polymerase Chain Reaction/Nucleic Acid Sequencing

CPT Code:

83890, 83898, 83904 x2, 83909

See Additional Information:
Specimens Requiring Immediate Delivery