I think there’s lots of different types of nurses, so much that it’s not really meaningful to compare/generalise?
My friend is an ultrasound nurse and does scans all day. Mostly she says she helps old people undress and dress again.
When I go for a smear test, that’s a nurse.
When I took my child to A&E the nurses were being used as substitute doctors. A nurse did triage, another nurse admitted us, another nurse did blood tests and analysed the xrays then there was the older lady everyone called the ‘Nurse Practitioner’ whatever that is, who unfortunately was a TOTAL idiot who insisted on lots of unnecessary tests and misdiagnosed my child causing her quite a bit of distress and pain. Whenever I asked to see a doctor the nurses asked like I’d asked a vicar to meet God. Eventually after 6 hrs of this I got sick of the whole thing, discharged us, hired a private doctor on the internet, 40 minutes later I had the prescription we needed and was off to a pharmacy. So in that case I’d say the nurses were clowning around trying to imitate doctors while having none of the training required to recognise basic medical complaints despite me telling and showing them on google exactly what the problem and what treatment was required.
(Or then the was the nurse who swore and shouted at my dying gran for asking for water.)
So I guess what I think nurses do is use machines to do scans and hand out medication and the Titanic that is the NHS is forcing them to act as doctors despite the ones I met being absolutely incompetent to do diagnosis and too tired/angry/inexperienced to provide compassionate care.
Suspect that isn’t the answer you were looking for sorry about that.