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Test ID CORAB Hepatitis B Core Total Antibodies, with Reflex to Hepatitis B Core Antibody IgM, Serum

Useful For

Detection and differentiation between recent and past/resolved or chronic hepatitis B viral (HBV) infection

 

Diagnosis of recent HBV infection during the "window period" when both hepatitis B surface antigen and antibodies to hepatitis B surface antigen are negative

 

Not useful for determining immunity to or recovery from hepatitis B viral (HBV) infection

Special Instructions

Method Name

Chemiluminescence Immunoassay

Reporting Name

HBc Total Ab, w/Reflex, S

Specimen Type

Serum SST


Necessary Information


Date of draw is required.



Specimen Required


Patient Preparation: For 24 hours before this test do not take multivitamins or dietary supplements containing biotin (vitamin B7), which 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: Centrifuge and remove serum from clot within 24 hours.


Specimen Minimum Volume

0.4 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum SST Frozen (preferred) 30 days
  Refrigerated  7 days
  Ambient  24 hours

Reference Values

Negative

Interpretation depends on clinical setting.

See Viral Hepatitis Serologic Profiles in Special Instructions.

Day(s) and Time(s) Performed

Monday through Saturday; Varies

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

86704

86705 (if appropriate)

LOINC Code Information

Test ID Test Order Name Order LOINC Value
CORAB HBc Total Ab, w/Reflex, S 13952-7

 

Result ID Test Result Name Result LOINC Value
CORAB HBc Total Ab, w/Reflex, S 13952-7

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.

Testing Algorithm

If hepatitis B core total antibodies is positive, then hepatitis B core antibody IgM is performed at an additional charge.

NY State Approved

Yes

Reflex Tests

Test ID Reporting Name Available Separately Always Performed
HBIM HBc IgM Ab, S Yes No

Forms

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