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HBSAG
HEPATITIS B SURFACE ANTIGEN, SERUM

Test Code HBSAG 
Test HEPATITIS B SURFACE ANTIGEN, SERUM 
Methodology Chemiluminescent Microparticle Immunoassay (CMIA) 
Description Useful for diagnosis of acute hepatitis B viral (HBV) infection, chronic HBV infection, or an asymptomatic carrier state.

NOTE: "Hepatitis B Surface Antigen Confirmation, Serum" may be performed at an additional charge on specimens testing positive. 

Specimen Draw blood in either a plain, red-top tube or serum gel tube. Spin down and send 1.5 mL (minimum volume: 0.6 mL) of serum refrigerated. 
Reference Values Negative (reported as positive or negative) 
Analytic Time 1 Day 
Day(s) Test Set Up Monday through Friday 
CPT Code(s) 87340  HBsAg
87341  HBsAg confirmation (if indicated)