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Hepatitis B Surface Antigen

$39
Quest DiagnosticsNo fasting2-5 business days

Plus a $12 blood draw fee, charged once per order. Free when your order includes a bundle.

Sample
Blood draw
Preparation
No fasting needed.
Results in
2-5 business days after your sample reaches the lab

Tests are ordered by an independent licensed physician. This service does not replace care from your own doctor. Talk with a healthcare professional about your results.

This test looks for hepatitis B surface antigen, a protein from the virus. A positive result means the virus is in your blood, which can mean a current infection. If it is positive, the lab runs a confirmation test.

People order it as part of screening, after a possible exposure, or before certain medical treatments.

Before your visit: no fasting is needed.