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Test Code HBSAG Hepatitis B Surface Antigen, Qualitative (HBsAg)

Important Note

The results of this assay can be falsely elevated due to the consumption of Biotin.  Please instruct patients to discontinue the use of vitamins or supplements that contain Biotin 12hrs before blood draw.

Performing Location

Southwestern Vermont Medical Center

Specimen Collection Information

Specimen  Min. Test Volume Collection Container Special Handling
Blood 0.5 mL Gold top
Marble Red top		  

Reference Ranges & Critical Values

Assay Gender Age Range Normal Range Critical Values Units
HBSAG ALL 0 Minutes – 150 Years      

Interpretive Data

  • NonReactive: HBsAg not detected; Does not exclude the possibility of exposure to HBV
  • Reactive: HBsAg detected. Presumptive evidence of HBV. Repeatedly reactive samples must be confirmed using a neutralization test.

Results obtained with the Elecsys Anti-HBs assay may not be used interchangebly with different manufacturer's assay methods.

Specimen Stability

7 days at 2-8°C

Day(s) Performed

Monday - Sunday

LOINC

5196-1

CPT

87340