It would depend largely on the nature of the home or institution, too, and what confidentiality...whether it's agreements or even laws such as the Health Care Consent Act in Ontario, that applied to that particular facility. It would change with each. I guess since you've had the benefit of the Chief Electoral Officer being here to speak to it, he could speak with greater expertise.
Evidence of meeting #23 for Procedure and House Affairs in the 41st Parliament, 2nd Session. (The original version is on Parliament’s site, as are the minutes.) The winning word was elections.
A video is available from Parliament.