HEPATITIS B SURFACE ANTIGEN Mnemonic HEPBSAG Synonym HBsAg - Hepatitis Bs Antigen Specimen Collection Requirements Collect Serum or plasma (Acceptable anticoagulants include lithium heparin, sodium heparin, di-potassium EDTA) Handling Specimens may be stored on or off the clot, red blood cells, or separator gel for up to 3 days at room temperature (study performed at 23 to 30°C) or up to 7 days at 2-8°C. If testing will be delayed more than 3 days for specimens stored at room temperature or more than 7 days for specimens stored at 2-8°C, remove serum or plasma from the clot, red blood cells, or separator gel and store at -20°C or colder. Avoid more than three freeze/thaw cycles. Preferred Volume 2.0 mL Minimum Volume 1.0 mL Transport Refrigerated (2-8°C) Rejection Criteria Grossly hemolyzed, lipemic and specimens with particulate material present Stability AFTER SEPARATION FROM CELLS: Ambient (20-25°C): 24 hours; Refrigerated (2-8°C): 6 Days; Frozen (at or below -20°C): 2 months Testing Information Performed Mon-Fri Method ELISA Referral Lab Samaritan Health Services Laboratories Reference Values Reference Values Non-Reactive CPT Codes 87340, 87341 Last Updated: Thursday, January 5, 2017 03:42:14 AM