Sep 4, 2006
My husband just got a result of his blood test: HBsAg cut off value 0.091; Patient Absorbance 1.103 reactive. We are worried and we do not know what this means. Is he chronically infected? We really do not know the source of his infection. Thank you.
Response from Dr. McGovern
When a HB surface antigen is positive, it usually means that chronic infection is present. However, this marker should be detected in the company of other markers, such as core antibody. Furthermore, hepatitis B surface antigens are supposed to be verified with further testing to be certain that they are reactive. If your husband is positive and has no risk factors, I would simply await the results of a full panel of tests, including hepatitis B core antibody, Hepatitis E antigen, E antibody, and HBV DNA.
Genotype 4 <10 copies
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