I assumed Hazel that what you're asking is whether you should tell the nurses on the ward where John is NOW that you will be doing this course. I mean, I assume that YOU'RE assuming that by the time the course comes around, John will already have left the hospital. If he's still in hospital the question will be moot: if the nurses turn up for the course they're going to recognise you anyway.
I think I might be inclined to drop it into conversation should the opening arise during the course of the care, but I wouldn't make a specific effort to do so.
I think I might be inclined to drop it into conversation should the opening arise during the course of the care, but I wouldn't make a specific effort to do so.