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HEPATITIS B SURFACE ANTIGEN
Test CodeLAB1157
CPT Codes
87340
Preferred Specimen
1 Gold tube (SST)
Patient Preparation
None
Minimum Volume
1 mL (1.5 mL optimal)
Other Acceptable Specimens
1 Lavender tube (EDTA)
OR
1 Green tube (any Heparin) Note: If Hep C testing is also required, do not draw heparin tube
OR
OR
1 Green tube (any Heparin) Note: If Hep C testing is also required, do not draw heparin tube
OR
Instructions
Centrifuge for complete separation of serum or plasma from red cells. Refrigerate until tested.
Transport Container
Gold tube
Transport Temperature
Refrigerate
Specimen Stability
2-8°C up to 7 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolyzed
Methodology
Direct Chemiluminescence
Setup Schedule
M, T, W, Th, F, Sa, Sun
Report Available
Same day as tested
Reference Range
Non-reactive
Reactive results are reported to the Illinois Board of Health.
See interpretation frequently asked questions (FAQ) below
Reactive results are reported to the Illinois Board of Health.
See interpretation frequently asked questions (FAQ) below
Clinical Significance
HBsAg is usually indicative of acute infection, but chronic carriers can test positive as well. All positive results for this test are automatically confirmed before reporting.
Performing Laboratory
Mount Sinai Hosptial
Additional Information
Interpretation Frequently Asked Questions (FAQ)
