I had day surgery last week in a north London hospital. While I was waiting around I saw an orthodox man going down to theatre with his kippah on and tzitzit over his surgical gown. I have never seen this before and was surprised it was allowed due to not being sterile. Unless they keep a supply of sterile kippot/tzittzit on standby? Can you take off your religious wear for surgery?
I did see a notice about a Shabbos lift so they must be used to orthodox patients and their requirements, but this made me curious!
Can anyone enlighten me?