not toally sure what you mean...that's ok though.
-any previous illnesses/injuries?
-what kind of trainign?
-how much training?
-who was the trainer?
who is your regular vet?
-may i contact him/her?
-have you owned the horse it's whoel life? if not, do you know the other owners?
-does the horse ahve any allergies?
-does the hores have any special needs or likes
-are there any quirks the horsey has tha ti should know about?
-any vices?
i hope that's good, that's what i would ask