What steps must be taken to upgrade an R3 case within 1 hour to urgent?

To upgrade an R3 case within 1 hour to urgent, changing the priority to a higher level, specifically to 1C or 1B, is the correct course of action. This action reflects the need to escalate the urgency of the response based on the situation's changing dynamics. Upgrading the priority ensures that the response team recognizes the heightened urgency and is prepared to act accordingly, mobilizing resources quickly to address the patient’s needs effectively.

In this context, recognizing the appropriate prioritization levels in the Medical Priority Dispatch System is essential for ensuring that patients with time-sensitive conditions receive timely care. By either upgrading the case priority to 1C or 1B, responders are given clear instructions to escalate their response effort, facilitating a more swift and appropriate reaction to the situation at hand.

Other options do not align with the established protocols for dealing with an R3 case. Notifying a supervisor, changing the case type to emergency, or canceling the existing case might not contribute directly to the immediate need for re-prioritization and an effective response, which is necessary in urgent medical situations. These steps could be part of broader communication or administrative processes but do not address the immediate need for a priority change.