# Hepatitis B Surface Antibody, Quantitative

> This test measures the specific amount of antibodies your immune system has produced against the Hepatitis B virus. It helps determine if you have enough protection to fight off the virus, which is useful for confirming if a vaccination was successful or if a booster shot is needed. While a high level suggests you are immune, this test alone does not diagnose an active Hepatitis B infection or determine if you are currently contagious.

- Labcorp code: 006530
- Category: [Infections](https://app.picardo.health/labs/tests/infections.md)
- Price: shown at checkout, before payment.
- Blood draw: free at a Labcorp location, or $75.00 at home.
- Order link: https://app.picardo.health/labs/order?tests=006530&ref=assistant

## About ordering

A licensed physician reviews every order before any test is run, and results arrive in the person's Picardo account. Ordering is open to adults 18 and over in the US, except New York, New Jersey, Rhode Island, Pennsylvania, Maryland, Massachusetts, Hawaii and Maine. General health information, not medical advice.