# Hepatitis B Surface Antigen (HBsAg) Screen, Qualitative With Reflex to Hepatitis D Virus (HDV) Antibody

> This test detects a specific protein on the surface of the hepatitis B virus and, if that protein is found, automatically checks for antibodies to the hepatitis D virus. It helps show whether you have an active hepatitis B infection and if a secondary hepatitis D infection is also present. This screening aids in distinguishing between a single viral infection and a coinfection that requires different medical management. However, a positive result indicates exposure but does not confirm if the hepatitis D infection is currently active or measure the extent of liver damage.

- Labcorp code: 006514
- 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=006514&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.