There's an excellent book, The Checklist Manifesto by Atul Gawande, that explains several transfers from aviation best practices to hospital best practices (primarily checklists and CRM, crew resource management). Captivating read if you're interested in aviation and not dying needlessly in hospital.
Possibly from the same source but one useful thing I learned was to do with check lists. Rather than ticking a box to say how many scalpels you used, is the tyre pressure OK etc etc you write down the number. The persons doesn't just say yes OK, they write down the pressure. That [generally] ensures they have actually measured it and got a real value.
