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HelpTest ID 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.
Useful For
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
Special Instructions
Method Name
Chemiluminescent Enzyme Immunoassay
Reporting Name
HBs Ag, Quantitative, SSpecimen Type
SerumSpecimen 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 |
Reference Values
<0.005 IU/mL
Day(s) Performed
Every other Tuesday
Report Available
1 to 14 daysPerforming 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 |
Testing Algorithm
For more information see Hepatitis B: Testing Algorithm for Screening, Diagnosis, and Management
Forms
If not ordering electronically, complete, print, and send 1 of the following: