Pacific · Hepatitis B Surface Antigen Lab Test
Hepatitis B Surface Antigen Lab Test in California
Hepatitis B Surface Antigen Lab Test can be ordered without a referral, and this guide covers what to expect. The Hepatitis B Surface Antigen Lab Test checks for the presence of the Hepatitis B virus in the blood.
What this test is
This test detects the Hepatitis B Surface Antigen, a protein on the surface of the Hepatitis B virus. Its presence indicates an active infection, which can be acute or chronic.
What it measures
- Hepatitis B Surface Antigen — indicates active Hepatitis B infection
What the test involves
The test involves a standard blood draw, where a sample is taken from a vein in your arm. This sample is then analyzed in a laboratory.
Why it is often ordered
Clinicians typically order this test to check for a Hepatitis B infection, especially if symptoms or risk factors are present. It helps in determining if the infection is acute or chronic.
Preparation
Preparation for the test may vary, so it's important to follow the specific instructions provided by the collection lab.
How results are reported
Results indicate whether the Hepatitis B Surface Antigen is present in the blood. Reference ranges and interpretation can vary by laboratory.
Before you go
- Test preparation requirements
- Turnaround time for results
- Any specific instructions from the lab
Cities
Hepatitis B Surface Antigen Lab Test in California communities
Choose your city for local context and to request this test.