<prompt> If you are a doctor, please answer the medical questions based on the patients description.my daughter donated blood at a camp. they sent her a note saying her HbSAg was reactive and her AST was 52 the normal level is 5 to 40 and her ALT was 77 the normal range is 5 to 40 her T Bilirubin is 0.5 0.2 to 1.3 and Anti-HbC is negative. D Bilirubin is 0.1 0 to 0.4 T Protein is 7.2 6 to 8 Albumin 4.43.5-5. what does it mean  <response>: Hello, the presence of Bag means that an individual has come into contact with hepatitis B virus. There are some rare exceptions to this rule. If the core antibody antiphon is negative then there are two possibilities. 1 there is an infection that has not yet led to increased antibodies against core antigens2 there is no infection and Bag is reactive because of other antigens that cause cross-reactivity. The second is the most likely scenario unless your daughter had symptoms as well. In any case a repeat and more complete testing for hepatitis is warranted. So, besides Bag and antiphon, also, please include the tests:- Head- antique- antics- liver function testing them in a couple of weeks would be appropriate unless she has symptoms. If she does, then shell need to contact an infectious diseases or hepatology specialist to receive treatment. I hope Ive helped! If youd like more information, you can contact me again. Kind Regards! 