Test Overview
Test Methodology

Chemiluminescent Immunoassay

Test Usage

Specimens are screened for the presence of Hepatitis B surface antigen. Hepatitis B Surface Antigen is the first antigen to appear following an infection and can be detected serologically as an aid in the lab diagnosis of acute hepatitis infection. The performance of this assay has not been established with cord blood, neonatal specimens, cadaver specimens, heat-inactivated samples or body fluids other than serum.

Reference Range *

Non-Reactive

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Daily, 24 hours
Analytic Time

4 hours

Soft Order Code
HBSAG
MiChart Code
Hepatitis B Surface Antigen
Synonyms
  • Australia Antigen
  • Hepatitis Associated Antigen
Laboratory
Chemical Pathology
Section
Automation
STAT Availability

STAT requests for this test will be performed on a STAT basis (supervisory staff approval is not required).

Specimen Requirements
Collection Instructions

Collect specimen in an SST or red top tube. Centrifuge within 24 hours of collection, aliquot serum into a plastic vial and refrigerate at 2-8C up to 14 days or freeze for longer storage at -20C with up to 4 freeze/thaw cycles..

Alternate Specimen

Red Top Tube; Green Top Tube (heparinized plasma); Lavender Top Tube (EDTA plasma)

Normal Volume

1.0 mL serum

Minimum Volume

0.5 mL serum

Billing
CPT Code
87340
Fee Code
32024
LOINC
5196-1
NY State Approved
No