Hi welcome to Healthcare Magic,
I would also like to know whether you child is over weight, these enzymes may also rise in obese children with fatty liver
.Also do inform whether the child has symptoms of nausea, vomiting or yellow discoloration of sclera and urine. Do investigate him further with ultrasound
to rule out fatty liver and viral markers like IgM HAV, IgM HEV and for hepatitis Band C.Do give him low fat diet/high carbohydrate
diet meanwhile.If he is overweight
and if viral markers are negative do encourage him to loose weight and repeat these tests after 2 weeks Also treat with hepatoprotectors like ursodeoxycholic
acid and even if they remain elevated even after 2 weeks of treatment workup him for autoimmune liver disease.