have you been doing extremely high volume and heavy wight training over the last few weeks ?
if your training fairly heavy and did not take a de-load or week off before your blood test ,, ALT and AST levels can be elevated and really read high on a blood test (un related to your actual liver though) .
best to get blood work done and liver values checked on a period of down time and after a de-load .. not sure if thats what you did or not. blood test during high metabolic stress and heavy training are going to be off