As a Pediatric Nurse, How Would You Educate the Parents

As a pediatric nurse, how would you educate the parents of a child who requires a PCA machine for pain management?

A) The child should never determine when and if a PCA dose is required.
B) Only the child should determine when a PCA dose is required.
C) The parent should only deliver medication when child is visibly uncomfortable.
D) The parent should never deliver medication under any circumstances.