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Test Code HBAGQ Hepatitis B Virus Surface Antigen, Quantitative, Serum


Ordering Guidance


This test should only be requested in individuals with chronic hepatitis B (HB), confirmed positive HB surface antigen, negative HBe antigen, and positive HBe antibody results.



Additional Testing Requirements


Testing for hepatitis B virus (HBV) DNA (HBVQN / Hepatitis B Virus [HBV] DNA Detection and Quantification by Real-Time PCR, Serum) and core-related antigen (HBCRQ / Hepatitis B Virus Core-Related Antigen, Quantitative, Serum) levels in serum will be helpful in monitoring response to curative antiviral therapy for chronic hepatitis B.



Shipping Instructions


Ship specimen frozen on dry ice only. If shipment will be delayed for more than 24 hours, freeze serum at -20 to -80° C (up to 60 days) until shipment, and transport on dry ice.



Necessary Information


Date of collection is required.



Specimen Required


Supplies: Sarstedt Aliquot Tube, 5 mL (T914)

Collection Container/Tube: Serum gel

Submission Container/Tube: Plastic vial

Specimen Volume: 2 mL

Collection Instructions: Centrifuge and aliquot serum into a plastic vial.


Secondary ID

621764

Useful For

Monitoring of progression of chronic hepatitis B in individuals who are confirmed to be positive for hepatitis B surface antigen

 

Monitoring of response to antiviral therapy in individuals who have chronic hepatitis B but are negative for hepatitis B e antigen and positive for hepatitis B e antibody

Method Name

Chemiluminescent Enzyme Immunoassay

Reporting Name

HBs Ag, Quantitative, S

Specimen Type

Serum

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Frozen (preferred) 28 days
  Refrigerated  14 days
  Ambient  7 days

Reject Due To

Gross hemolysis Reject
Gross lipemia Reject
Gross icterus Reject

Reference Values

<0.005 IU/mL

Day(s) Performed

Every other Tuesday

Report Available

1 to 14 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information

87467

LOINC Code Information

Test ID Test Order Name Order LOINC Value
HBAGQ HBs Ag, Quantitative, S 63557-3

 

Result ID Test Result Name Result LOINC Value
HBSQ1 HBs Ag, Quantitative, S 63557-3

Forms

If not ordering electronically, complete, print, and send 1 of the following:

-Gastroenterology and Hepatology Test Request (T728)

-Infectious Disease Serology Test Request (T916)