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Test Code HBEM Hepatitis B e-Antigen, Serum

Additional Codes







Reporting Name

Hepatitis Be Ag, S

Useful For

Determining infectivity of hepatitis B virus (HBV) carriers


Monitoring infection status of individuals with chronic hepatitis B


Monitoring serologic response of chronically HBV-infected patients receiving antiviral therapy


Determining the level of hepatitis B e-antigen

Testing Algorithm

See HBV Infection-Diagnostic Approach and Management Algorithm in Special Instructions.

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type

Serum SST

Additional Testing Requirements

If ordered with HBVQN / Hepatitis B Virus (HBV) DNA Detection and Quantification by Real-Time PCR, Serum; send separate vials.

Necessary Information

Date of draw is required.

Specimen Required

Patient Preparation: For 24 hours before this blood collection, do not take multivitamins or dietary supplements containing biotin (vitamin B7) that is commonly found in hair, skin, and nail supplements and multivitamins.

Collection Container/Tube: Serum gel

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL

Collection Instructions: Spin down and remove serum from gel within 24 hours.

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum SST Frozen (preferred)
  Refrigerated  7 days
  Ambient  24 hours

Reference Values


See Viral Hepatitis Serologic Profiles in Special Instructions.

Day(s) and Time(s) Performed

Monday through Saturday; Varies

Test Classification

This test has been cleared or approved by the U.S. Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
EAG Hepatitis Be Ag, S 13954-3


Result ID Test Result Name Result LOINC Value
EAG Hepatitis Be Ag, S 13954-3

Analytic Time

1 day

Reject Due To


Mild OK; Gross reject


Mild OK; Gross reject


Mild OK; Gross reject



Method Name

Chemiluminescence Immunoassay


If not ordering electronically, complete, print, and send a Gastroenterology and Hepatology Test Request Form (T728) with the specimen (