Hi My Dad Age Is 59 Recently We Take A

hi my dad age is 59 recently we take a lft by tat time total bilirubin is 4.0 sgpt and sgot are normal...... he is in regular diet again we take a lft test now tha total bilirubin is 5.8 but ggpt and sgot are normal.......... what is the condition he also taken hbsag the result is negative....