What should I do if my wife's iPad is lost with the password written on it?

I'm really having a tough time right now. My wife is in the hospital battling brain cancer, and I left her iPad with her so she could FaceTime the kids. Unfortunately, I put a label with the password right on the iPad for her to remember since her memory isn't great. Now, the iPad has gone missing during her hospital stay. I've already remotely locked it, but it doesn't help since the password is literally on the device. There's been no sign of it being turned on since it got lost, and while the hospital is looking, I doubt it will turn up. I managed to log her out of all accounts from her Mac at home and changed the passwords for those accounts, but I'm worried about someone potentially accessing her accounts with the iPad and its password. Would it be wise to remotely wipe it? I'd prefer not to, as there might be important information on there, but I'm also concerned about security. What other steps can I take to protect her accounts? I'd also love to be able to lock the iPad with a new password if that were an option. It's just really frustrating dealing with all of this, especially considering what she's going through.