My 30 Year Old Son Just Had His Blood Work

My 30 year old son just had his blood work done and his liver enzymes are 54. He is not a heavy drinker (maybe once a month) but is overweight and has been a smoker since age 15. He is in a trial to quit smoking now but the researchers tested his blood and his liver enzymes were the only thing off the charts.

Is this a dangerous situation? What should we be doing about this?