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Test Name

Hepatitis B Surface Antigen with Reflex Confirmation

To view specimen requirements and codes please Select a regional laboratory.

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CPT Code(s)**

87340
**IMPORTANT: CPT Code is informational only; obtain the Test Code for ordering.

Includes

Positive samples will be confirmed based on the manufacturer's FDA approved recommendations at an additional charge (CPT code(s): 87341).

Methodology

Immunoassay (IA)

Limitations

Results obtained from immunosuppressed patients should be interpreted with caution. Patients receiving mouse antibody therapy may produce false-negative results.

Reference Range(s)

Non-Reactive

Clinical Significance

Surface antigen usually appears in the serum after an incubation period of 1 to 6 months following exposure to Hepatitis B virus and peaks shortly after onset of symptoms. It typically disappears within 1 to 3 months. Persistence of Hepatitis B surface antigen for greater than 6 months is a prognostic indicator of chronic Hepatitis B infection.

Note: When only a single test, Hepatitis B Surface Antigen, is ordered to diagnose Hepatitis B in a pregnant woman, additional tests such as liver enzymes should be ordered to confirm the diagnosis.

Alternative Name(s)

Australian Antigen,HBsAg,Auszyme

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided 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 payer being billed.

* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.

498
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498
498
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498
498
498
498
498X
498
498 HEP B Ag
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498
498
498
Hepatitis B Surface Antigen with Reflex Confirmation
498