Pacific · Hepatitis B Surface Antibody, Quantitative
Hepatitis B Surface Antibody, Quantitative in California
This page explains the hepatitis b surface antibody, quantitative, what it measures, and how to order it. This test measures the amount of Hepatitis B surface antibody in your blood. It helps determine your immunity to the Hepatitis B virus.
What this test is
The Hepatitis B surface antibody (anti-HBs) is a protein produced by your immune system in response to the Hepatitis B surface antigen. It indicates protection against the Hepatitis B virus, either from vaccination or past infection.
What it measures
- Hepatitis B Surface Antibody (anti-HBs) — reflects immunity to Hepatitis B virus
What the test involves
This test is performed on a blood sample. A healthcare professional will draw blood from a vein in your arm using a needle.
Why it is often ordered
Clinicians often order this test to check if a Hepatitis B vaccination was successful or to assess immunity in individuals who may have been exposed to the virus. It helps evaluate a person's protective status against Hepatitis B infection.
Preparation
No specific preparation is usually required for this test. Please follow any instructions provided by the laboratory where you will have your blood drawn.
How results are reported
Results are typically reported as a quantitative value, indicating the amount of antibody present. Reference ranges, which help interpret these values, vary between laboratories.
Before you go
- Turnaround time
- Fasting requirements
- Specific preparation instructions
Cities
Hepatitis B Surface Antibody, Quantitative in California communities
Choose your city for local context and to request this test.