Hepatitis B Surface Antigen


Sunquest Code:HBSAG  
Epic Code:LAB471Epic Name:Hepatitis B Surface Antigen
Synonyms:HBSAG; Hep B; HEPB
Methodology:Chemiluminescent immunoassay
CPT Code:----------CPTCODES HERE----------
Test Includes:If test is repeat reactive, a confirmation is performed and charged. A bill only code will be added: HBSAGC.
Turnaround Time:Performed Mon-Fri; results are reported the same day; positive results are reported within 3 days.
Special Instructions:A cadaveric specimen from autopsy may be run for HBsAg at the request of the pathologist performing the autopsy and with the approval of the IDDL Medical Director on call. No cadaveric specimen from autopsy will be processed for organ donation.


Collection Instructions

Specimen:Blood
Optimal Volume:2 mL
Minimum\Peds Volume:0.6 mL
Container:Red or gold (gel) (Green (lithium heparin, gel), Green (sodium heparin, no gel), Purple (EDTA), Red (no gel))
Collection Instructions:Serum is preferred. EDTA or heparinized plasma will be accepted. Serum is the only acceptable sample for neonates.
Causes for Rejection:Gross hemolysis, turbidity


Processing and Shipping

Specimen Processing:Centrifuge and leave sample in serum separator tube. If necessary, aliquot 0.4 mL, 0.2 mL minimum. Store in refrigerator up to 7 days.
Shipping Instructions:Ship at refrigerated or frozen temperature.
Test Performed at or Referral Lab Specialty Core  (UMMC-East Bank)


Interpretive

Reference Range:Non-reactive
Use:The presence of hepatitis B antigen is associated with acute or chronic infection.


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