Bit off topic but interested to know about the scrubs thing - I gave birth in a small local hospital (midwife led unit) and the midwives wore tunics for the most part. However, just before I delivered they changed into scrubs. I definitely wasn't in theatre though, as they don't have one at that hospital, you have to be transferred. My sister in law is training to be a midwife locally so I'll have to ask her!
They would still wear scrubs because of the amount of blood and fluids and stuff, it would be for infection control. Otherwise they would have to wear so many uniforms every single shift. My OH is a nurse endoscopist so he wears scrubs for that, because of the poo etc...but it's not in theatres, you don't even have to have them done in hospital, some GP surgeries have endoscopy suites. Then when he's doing jobs other than the procedures he puts his uniform back on. x