Hepatitis B DNA Quantitative; Real-Time PCR


Abbrev Code:HBVPCR   
Order Code:LAB6463Order Name:Hepatitis B DNA Quantitative
Synonyms:HBV Viral Load; HBQNT; HEPB; Hep B
Methodology:Polymerase Chain Reaction (PCR)
CPT Codes: 87517 x1
Turnaround Time:Testing is performed twice weekly; results are reported within 4 days.


Collection Instructions

Specimen:Blood
Optimal Volume:8 mL
Minimum\Peds Volume:4 mL
Container:10 mL Purple EDTA tube
Alternate Containers: Purple (EDTA), Red (no gel), Red or gold (gel)
Causes for Rejection:Heparinized samples, frozen whole blood, specimen types other than EDTA plasma or red or gold (gel) serum are not acceptable for testing.


Processing and Shipping

Specimen Processing:Within 24 hours of collection, centrifuge and aliquot 2 mL, 1 mL minimum. Store refrigerated or frozen.
Shipping Instructions:Ship at refrigerated or frozen temperature.
Stability:6 days at refrigerated temperature; 84 days frozen.
Test Performed at or Referral Lab Infectious Diseases Diagnostic Laboratory   (UMMC East Bank)


Interpretive

Reference Range:

Not detected. Reportable range of 10 - 1,000,000,000 IU/mL (1.0 - 9.0 log IU/mL).

 

Result Indicates
Not Detected the assay was unable to detect HBV DNA within the specimen.
<10 IU/mL
  (<1.0 log IU/mL) 		HBV DNA is detected, but the level present is less than the lower quantification limit of the assay.
>1,000,000,000 IU/mL
  (>9.0 log IU/mL) 		HBV DNA is detected, but the level present is above the upper quantification limit of the assay.
Limitations:Assay is not intended for use as a screening test for the presence of HBV in blood/blood products or as a diagnostic test to confirm the presence of HBV infection.
Use:Intended uses include the following: Quantification of HBV DNA in plasma or serum of patients with chronic HBV infection; Measure HBV DNA levels at baseline and during treatment to aid in assessing response to treatment; Distinguish active from inactive HBV infection.


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