Good question. You got me. I tried the Google way but didn't get a answer.

Maybe they're checking your levels for a baseline.

Medication can cause your liver problems Maybe they're look out for that.

And you kind of went without medical attention. Remember?

May be looking for something else?

Can indicate a lot.

Lots of times it's routine to get blood tests. Results can also rule out other potential causes for some or all of your symptoms.

It will be good news if you're within normal limits.

Just a few thoughts. Keep asking. ask your doc if you have to. They're usually good at explaining the need for tests.

Brain injury takes special attention...

make sure you're getting enough rest, ok?