The infections in hospitals is a very good point. I discharged myself the day after my op, against the registrars advice. They wanted to pump me full of morphine but I said no no no.
Go for General. At least if you do snuff it you won't know about it Bealey. Trust me I know what I'm talking about. I "died" on the theatre table in 1984 and was going towards the light until the docs pulled me off and round after being clinically dead for 3 minutes. It's had no effect on me as you can see.
You'll be in overnight then. Take your own bottled water in and prepare for no sleep coz they'll likely lump you up in a ward with folk who groan like zombies all night. Also, the nursing staff these days care more about targets than their patients. Big reason why I discharged myself - they didn't give a toss, or couldn't coz of restrictions.