Article content They graduated, wrote their registration exams with the College of Nurses of Ontario and, once successful, became practising registered nurses. Try refreshing your browser, or BAKER: Training was tough, but veteran nurses would do it all over again Back to video We apologize, but this video has failed to load. But one aspect Agonis finds concerning in health care today is the heavy use of disposable patient care supplies, which creates much waste. Article content “When we trained, and for many years after, most supplies were made of glass. Article content Agonis goes on to say that nurses training in that era was demanding and immersive.