What situation does a request for an ambulance "outside" typically denote?

The correct answer indicates that a request for an ambulance "outside" typically refers to outdoor medical emergencies needing urgent response. This terminology suggests situations that occur in open, outdoor settings where immediate medical attention is required, such as in parks, streets, or recreational areas.

These types of emergencies can involve various incidents, including sports injuries, accidents, or sudden medical crises that happen outside of buildings or vehicles. The context implies that the location increases the urgency for an ambulance to respond quickly due to the nature of the environment and potentially limited access to healthcare facilities.

Considering the other options: while public venues and large gatherings can certainly involve outdoor emergencies, the specific phrase "outside" denotes that the emergency is specifically occurring outdoors. Residential areas, while they might also require ambulances, are not implied by the term "outside" in the same way, as they may also pertain to indoor incidents. Thus, the focus on urgent responses for outdoor emergencies aligns most closely with the chosen answer.