hi my son is 29 years old,,, with ulcerative colitis,, lately he had a high blood pressure,,, after some medication he did some liver tests with results alt 70 and ast 49 ,,his docter asked a hepatitis tests, i just got the results on fax but not clear they are hepatitis b .06 and c .01 is that within the normal range meaning nohepatitis, and what the ast alt means,,thank you.