You can use Bitwarden as the native password manager on an iPhone. And that can sync to the desktop version. I have all my passwords in one place. And on the iPhone since it’s the system password manager it works with apps too.
Alternatively, get her a small notebook, write things down and tell her to use that.
lol…. It doesn’t happen and if it did it wouldn’t get lodged in there. Tell the nurse the truth when they’re working to remove it, they already know.