Bolded things are bull stuff. You can have Wi-fi in hospitals they disapprove of cellphones. So Wi-fi? Attention whoring yes. Also a button to give extra pain killers? Bull stuff do you know how many druggies come to hospitals? *Press* *Press* *Jabjabjajabjab*.
I'm pretty sure morphine buttons exist.
I've also never heard of this anti-cellphone rule, but if it does exist it's not for the same reasons that airplanes don't allow it, you dope. It's likely just considered rude to have the family chatting away frantically about someone's tumor in a room full of nurses and patients.