Test Directory

7602 Hepatitis B Surf Ab,QNT

Specimen Type
Specimen Stability
Reference Range
2 Months, Frozen
14 Days, Refrigerated
5 Days, Ambient
> 9 mIU/mL

Specimen Requirements

Specimen Type: Serum
Container: 1 Serum Separator Tube (SST)
Temperature: Refrigerated
Preferred Vol: 1.00 mL
Min Vol: 0.50 mL




Sunday - Saturday

Turn-Around Time



Frozen stability is indefinite

Clinical Utility

The presence of antibody to hepatitis B surface antigen (anti-HBs) is used to determine immune status to HBV or disease progression in individuals infected with HBV. An increase in anti-HBs levels, together with a loss of detectable circulating hepatitis B surface antigen (HBsAg), denotes convalescence in hepatitis B infections. Futhermore, anti-HBs levels can be measured to determine if vaccination is needed or, following a vaccination regimen, to determine if protective immunity has been achieved.

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