(7) "Purchase" means to acquire, obtain, or receive, or to attempt to acquire, obtain, or receive, by exchange of money or other valuable consideration. This term specifically includes barter or exchange.

(57) "Purchase" means to acquire, obtain, or receive or to attempt to acquire, obtain, or receive by exchange of valuable consideration. This term specifically includes barter and exchange.

"Purchase" means any transaction involving the person from whom blood is withdrawn, whether he presents himself for the withdrawal of blood on his own initiative or on the initiative of another person, in which he receives a monetary consideration in any form [...]

(12) "Purchase" means any acquisition of ownership.