Raised liver function, need a repeat test, anyone know what they could mean?

[FairyBiker]

Because of high blood pressure I have occasional blood tests, the most recent ones have come back with raised bilirubin and ALT.

What I was wondering is can I do anything to bring the levels down or is it caused by medication?

The dr said it was nothing to worry about but if I start going yellow or get abdominal pain to go back before the next text
Thanks