Alt is pretty specific to the liver even though small amounts of alt can be found in heart, kidney, and skeletal muscle. Ast can be elevated after a myocardial infarction
), and during pancreatitis
, hemolytic anemia
, severe burns
, acute renal disease, musculoskeletal diseases, and trauma - it is pretty non-specific.
Talk to your doctor about why your tests may be mildly abnormal (doubled from the norm is pretty mild). Various medications, infections, or other illnesses can cause elevated liver enzymes.