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Vanderbilt Pathology Laboratory Services

Test Directory



HEPATITIS B e ANTIGEN (HEA)

Department: Virology
Test Synonym(s): HEA
CPT Codes: 87350
Methodology: EIA
Reference Range: Negative, positive, or equivocal
Tube Type: Red top (no gel)
Specimen: Serum only
Pediatric Requirements: Red top microtainer (1 mL) x 2 or 3
Volume: 200 uL (includes repeat)
Minimum Volume: 100 uL
Temperature: Allow to clot, store refrigerated (2-8C)
Stability: Room temperature (15-30 C): 24 hours; 2-8 C: up to 6 days; Longer than 6 days: remove serum from clot and store at -20 C
Reasons for Rejection: Same assay within 4 days, heat inactivation, gross hemolysis, lipemia.
Days Performed: Wednesday
Times Performed: Morning
TAT: 5 hours to 7 days

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