I recently came out of hospital and had to undergo a blood test for the DVLA, my results show a high Gamma GT level(140). I was in hospital having cancer treatment(neck dissection) and had not had a drink for 3 months before the blood test and then it was a tiny amount. I know my Liver is'nt too good from drinking heavily, years ago, i have regular check ups. Could the raised GT level be due to my Cancer and painkillers or/and the damage already done to the Liver?