What can cause a 15 (whom doesn't drink alcohol, or do illegal drugs, hell won't take a tylenol unless headaches are really bad)? Then the second test come back with a much lower reading.... we really didn't change anything in his diet. His older sister (now 17) was diagnosed with 4 blood clotting disorders, can they have anything to do with his elevated liver enzymes? Lupus, Devics, ITP, High Blood Pressure, Stroke, and other hereditary (and non-) run in the family....do I need him retested for something specific?