HBsAg Rapid Test is a lateral flow chromatographic immunoassay for the qualitative detection of Hepatitis B surface antigen (HBsAg) in human whole blood,serum or plasma at the level equal or higher than 2 ng/ml. It is intended to be used as a screening test and as an aid in the diagnosis of infection with Hepatitis B virus (HBV). Any reactive specimen with the HBsAg Rapid Test must be confirmed with alternative testing method(s) and clinical findings.