HEPATITIS B SURFACE ANTIGEN 

Message
- marker of replicating virus;
- present in acute infection;
- persists in chronic infection;
- presence indicates infectious state.


Test Code
HBSAG


Alias/See Also
Cerner : Hepatitis B Surface Antigen 


Preferred Specimen
1 ml serum or plasma 


Minimum Volume
0.5 ml serum 


Instructions
SEPARATE FROM RED BLOOD CELLS AND TRANSPORT TO LAB ASAP


Specimen Stability
Refrigerated : 7 days 


Methodology
IMMUNOMETRIC IMMUNOASSAY 

Performing Laboratory
UMC 



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.