FE,
I recently had a discussion about this with a doctor friend who said that one way they test for liver problems is by looking for traces of creatinine (A waste product of creatine) in the urine. So I would suggest you simply tell them, as to the best of my knowledge the only problems you will encounter are false test results.
Hope that helps,
Ugly
[This message has been edited by I Am Ugly (edited 06 April 2001).]