We have a nursing home associated and owned by our hospital system. I do not manage the volunteers on that site, but they do complete the same application process, health appraisal, and background check. However, they accept one-time only people (they call them volunteers) who enter without completing that intake process. They could be a group who performs for an evening, a person visiting with a pet (no requirement for training like we have in the hospital), or someone offering to call BINGO.
Hope this helps.