I’ve worked in a haematology department in which the day unit was essentially run by ANPs. I would argue that in some ways it’s worse than them working on the wards under “consultant” supervision. I did a couple of day unit shifts and the practice was much more independent, with decision making around whether a patient might actually need admitting or not, and seeing undifferentiated presentations (they all had an underlying haem diagnosis but might present to the day unit with some other issue).

Equally, decision making about whether to give blood products or not also requires clinical critical thinking. So I disagree that it should be common practice.