Hepatitis B Envelope Antigen and Antibody

Blood: Harvest serum/plasma from whole blood within 24 hour or collection. Serum/plasma may be stored at 2-8°C (ice pack) for up to 3 days at room temperature (15-30°C) or up to 7 days. Freeze at -20°C or colder for long term storage. Do not freeze/thaw.

Outside Laboratories: Ship samples on Dry Ice, do not freeze/thaw. If freezer and/or dry ice is not available, ship immediately at 2-8°C (ice pack), shipment time must not to exceed 7 days from collection. Samples stored at 2-8°C greater than 7 days old will be rejected.

Unacceptable samples: Cord blood, neonatal specimens, cadaver specimens, heat-inactivated specimens, or body fluids such as saliva, urine, amniotic fluid, or pleural fluid. Specimens with obvious microbial contamination, lipemic or are grossly hemolyzed.