What does your facility do for rapid response? I know of some hospitals where a whole team of people, including an EM physician show up to the bedside, and others where just a good critical care nurse responds. When I worked rapid response it was basically for when the nurse couldn't handle the situation themselves. If you know what you're doing just call the doc and handle it yourself. You should ask your charge nurse and other nurses in your unit for help before calling the rapid response nurse, if your charge says to call then call. That being said if you find a patient agonal breathing, completely unresponsive and can't find a pulse, that would be a code and you press the blue button. Are you working in ED? Every facility I worked in rapid response didn't handle the ED because the physicians are right there. Rapid is basically a middle man between the physician and you in a rapidly deteriorating patient. Chest pain but VSS? Call the hospitalist. Chest pain with BP 70/50 and dizzy? Call rapid STAT.