I work in a busy Ambulatory Care clinic, and we have RRTs all the time. Typically, it is only one-to-two ER RNs and an RT. In our hospital, a RRT is meant to be a low key event: it is not advertised over the hospital intercom. The ER RN who shows up decides whether it should be a full-blown Code, or the patient should be transported to ER before it comes to that (which is always what happens). There are no MD who show up, or 100 Residents wanting to get their hands dirty. RRTs should be on the DL, until they need to be upgraded.