What I learned on a uni medical ethics course
was that as most JW parents value their kids above their religion, hospitals have a procedure to cover transfusions.

The parents make a token protest against the transfusion but it's done anyway, as the hospital can tell them that the ward of court application is already underway.

The hospital's done its job, the child is saved, the JW parents are off the hook and everyone's happy.
(Juan Quar is clinging to her front teeth on, Wed 25 Mar 2009, 8:10, Reply)