Hepatitis B Surface Antigen

Last Modified: 3/27/2019 3:25:14 PM

  Medicare Medical Necessity Restrictions May Apply
Medical Necessity Documentation:
Duplicate testing on this test is not acceptable per Medicare:  Testing to only be done every 365 days
Client Notes:  
Patient Preparation: Patient should discontinue taking Biotin, Vitamin B7, or Vitamin H 48 hours before getting blood drawn.
Specimen Requirements: 1.0 mL Serum in a SST Gold Top Tube
Collection Instructions: Submission of minimum specimen requirements may be insufficient if confirmatory testing
Minimum Volume: 0.2 mL Serum
Transport & Storage: Temperature/Stability: 14 days Refrigerated

24 hours unspun
Reference Range: Negative
Critical Ranges:  
Test Comments: Equivocal and weakly reactive HBsAg results will be confirmed by neutralization and charged accordingly.

Patients taking vitamin supplements containing doses of >5 mg/day may have falsely decreased test results generated.
Methodology: Chemiluminescence
Clinical Significance:  
Custom Panel: No


Stat Eligible: Yes
Days Performed: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday
Sites Performed: Parkview Regional Medical Center
PHL Test Code: HBSAG
EPIC Test Code: IMO18
Alternate Test Names: HBsAg
Included Tests:  
CPT Coding: 87340 (Reflex 87341)

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