It actually varies by jurisdiction. They are not required to collect the samples under the jurisdiction of a nurse. It varies by province. It may be an appropriate health care professional, and so on. It's different language in different provinces.
That said, of their workforce—this is from memory—about 1,029 are, in fact, nurses. I think there were 29 who are not nurses. After we found out that non-nurses were involved in supervision, even though it wasn't required under the province, we asked them to reassign those staff to other duties to ensure that appropriately trained medical teams were looking over the supervision.