Hepatitis B Surface Antibody, Qualitative:
Fasting Required: No
Specimen: Blood
Lab: Quest Diagnostics
Results: Test run Mon-Fri; Average processing time 3-5 days
Note: Result turnaround times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.
Description: Used to detect previous exposure to HBV; it can also develop from successful vaccination so it is used to determine the need for vaccination (if anti-HBs is absent) or to determine if a person has recovered from an infection and is immune (cannot get the infection again).