The quantification of hepatitis B two-to-one requires looking at a quantitative result and converting each of its items into a qualitative one before being able to read it. The first is the surface antigen of hepatitis B. The units of surface antigen are not consistent, more common are IU/ml, the vast majority will be less than 0.05 IU/ml as a reference range, but it also depends on the specific laboratory, some laboratory units are not this kind, or its reference range is not less than 0.05 IU/ml, so you should specifically look at the reference range on the test sheet, less than this The reference range is negative, greater than the reference range is positive. As for the surface antibody of hepatitis B, its unit is fixed, usually mIU/ml, or IU/L. These two units are actually the same, less than 10mIU/ml means there is no surface antibody of hepatitis B, which is negative, while more than 10mIU/ml means there is surface antibody of hepatitis B. As for the other three, we need to look at the specific reference range to determine whether the specific is negative or positive.