HEPATITIS B SURFACE ANTIGEN

Message

Reactive results are reported to the states of Indiana and Illinois Board of Health. Please note the physician has a separate reporting requirement independent from the laboratory.

Test Code

HBSAG

Alias/See Also

Hep B

CPT Codes
87340

Preferred Specimen

1 Gold tube (gel separator)

Minimum Volume

1 mL

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)

Instructions

Centrifuge for complete separation of plasma or serum and red cells. Refrigerate until tested.

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

Within 24 hours of receipt at the performing laboratory.

Reference Range

Non-reactive

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.

Performed By
Alverno Laboratories

Performing Laboratory
Alverno Central Lab
NCHB3 (Chemistry, Centaur)

Additional Information
Hepatitis B FAQ

Last Updated: June 5, 2023

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.