Test Directory

Test Code
AHBG
Test Name
Hepatitis B Core Ab, TOTAL
CPT Codes
86704
Expected Turnaround Time
1 - 3 days
Clinical Utility
Used in the differential diagnosis of Hepatitis B infection in conjunction with other serologic markers.
Specimen and Container Info

Specimen Type: Serum

Alternate Specimen Type: Plasma

Preferred Collection Container: Gold Top, Serum Separator

Alternate Collection Container: Lavender Top (EDTA) 

Alternate Collection Container: Red Top, Separator

Minimum Acceptable Volume: 1.2 mL

Processing and Submission Instructions

Separator tubes: Contains clot activator and gel for separating serum from cells, but not anticoagulant. Separate serum from cells as soon as the clot has formed (30 minutes). If specimen is centrifuged before clotting is complete, a fibrin clot will form on top of the cell. This may cause the gel barrier to not be intact and could cause improper separation of serum and cells, possibly affecting test results.

Tubes with anticoagulant: To ensure accurate test results, all tubes containing an anticoagulant or preservative must be allowed to fill completely. Attempts to force more blood into the tube by exerting pressure, as in collection with a syringe, will result in damage to the red cells (hemolysis).

Transport Instructions

Transport to the laboratory refrigerated.

Stability Requirements

Refrigerated

4 days
Methodology
Chemiluminescent Immunoassay
Reference Intervals
Performing Location
Roble Road Core Laboratory
Testing Schedule
Routine, daily