<s>[INST] HI, IM 19 YEARS OLD AND CURRENTLY TAKING 2 Isotretinoin 20mg PER WEEK SINCE DECEMBER AND HAVING PERIODICAL LIVER FUNCTION AND LIPOPROTEINS BLOOD TEST. THE LAST RESULTS CAME WITH NORMAL LIPOPROTEINS, NORMAL BILIRUBIN (DIRECT AND INDIRECT), NORMAL ALP, BUT AST AND ALT WHERE VERY HIGH. MY  DERMATHOLOGIST IS CURRENTLY OVERSEAS AND WONT ARRIVE FOR ANOTHER MONTH...COULD IT BE RELATED WITH A VERY STRONG EXERCISE I DID 2 DAYS BEFORE GETTING THE TEST DONE? [/INST] Hi thanks for contacting Chat Doctor... Exercise cannot elevate liver enzymes. If respiratory mono nucleons or cytomegalovirus infection present then also it can be elevated.... Chat Doctor. ...USG dine to look for fatty liver and gall stone if present. If cardiac history or muscular problem then also enzymes elevated..... If viral hepatitis suspected viral marker done.(like abdominal pain, omitting etc.) Use less fatty diet.... More fruits..... Regular follow up needed.... Take care. </s>