I can't imagine a unit where it was acceptable, and I KNOW it wouldn't be comfortable after an entire shift of wearing open toed shoes, but I have no idea where you can find any info on it, other than probably just asking someone at the hospital what the policy is.

Sorry it wasn't a very good answer but I don't know what else to say.

Why would you want to wear open toed shoes anyway? They can't be very comfy after a few hours of work, can they?