I've been discussing this with my OH, who's been having long term chemotherapy (along with regular x-rays, scans, blood tests, infusions, etc) over the past five years. He's literally in a hospital every week for something, sometimes 2 or 3 times in a week!
He says the actual nurses themselves (i.e. qualified nurses) have been generally brilliant and he's only come across the occasional one who hasn't been. He's been in so often, he knows the uniforms etc! In particular, his allocated cancer specialist nurse truly is a credit to her profession although he barely sees her, she's the one who sorts out all the problems he has (which are far too frequent, but that's not her fault!). He is always reluctant to leave her a phone message, but it's usually out of frustration that no one else deals with problems, and she always sorts it out! He feels guilty that she's the one he complains to and always apologises to her whenever he calls, but no one else seems to care! The nurses in the day treatment centre where he has his regular infusions are also brilliant he says!
Who he says are the problem is the HCAs, administrators, receptionists, etc. He says that probably half the time, they don't do what they say they will, botch up blood tests, get appointments wrong (they have to be synchronised), are late with issuing prescriptions, don't pass on messages, etc. It's his allocated nurse who always has to pick up the pieces! He can understand why she'd be frustrated and overworked, but it's not the patient at fault, it's the "support" staff who cause the problems.