The elevation of the liver enzymes can suggest a few possibilities. The commonest cause of liver enzyme elevation of this magnitude is fatty liver which can be picked up most times by doing a simple ultrasound scan of her liver.
Patients with fatty liver may also have concurrent diabetes, hypertension or elevated cholesterol level. They tend to be slightly overweight as well.
Other causes include undiagnosed viral hepatitis infection, mostly Hepatitis B or C. You can scan through her results to see if such causes have already been excluded during her health screening. Besides that, health supplements and medicine may cause liver function abnormalities. In such cases, the liver enzymes usually normalise when the culprit medicine or supplement is stopped.
May I advise your mom to pay her doctor a visit say a few weeks later to see if the enzyme levels are still high. If so, she should consider seeing a specialist to get her problem sorted out.
Dr Quan