Dear Blu, I totally understand how you are thinking. I've been there and my slightly out of range test result was something liver/pancreas related... imagine how anxious I became over that. xD
Meanwhile the Dr was looking at my face and smiling. Then she said "slightly out of range doesn't mean anything. Your other liver results are perfect. Don't worry"
After that of course I kept thinking about
that for a month or so, then I replaced it with a new worry (it's typical for worriers) and when I realized the pattern of my thoughts, I calmed.
It's been 4 years. I don't have a liver problem as far as I am concerned. And I don't want to check to be honest.
So to sum it up, you will be fine if your Dr is not worried. Listen to them
If you can't overcome the worry, ask for a second opinion. But it may cause more anxiety imo, so stick to your CBT skills as much as you can.
All will be fine <3