Here at my hospital in the US we've traded in out electric chair in favor of lethal injection which requires not electrical safety test. Do they still do site prep and use clean needles? not being a clinician I couldn't say.
There seems to be a question everywhere as to what to test, how to test and when to test just about everything. If anything a patient could contact is an applied part, what's not an applied part. I test the beds at our facility, maintenance (estates) did test beds untill we upgraded to beds with built in scales and other electronics. We check all the movement controls, lock outs, scale and alarms and do an electrical safety test. Is this the right thing to do? I certainly hope so.