hello Dr. just curious what a elevated CO2 and AST level might indicate,,,,just had my blood drawn 2wks ago...alittle background....recovering from rotator cuff and bicep surgery (april).. otherwise pretty good health..only take vit c, a multivitamin and metamucil daily.. my doctor requested discontinuing the otc meds and what little alcohol i consume and come back for another blood test in 2 wks