Which is the final phase of an EMS call?

• A. Initial receipt of the call
• B. En route to the call
• C. On scene
• D. Return to service

Answer: (D)

Understanding the EMS call lifecycle, the final phase is when the crew returns to service. After patient care is completed and care is transferred or transported as needed, the unit goes back to the station, restocks supplies, cleans and documents the call, and becomes available for the next dispatch. This return-to-service step seals the end of that specific call and resets the crew for future responses. The other stages—the initial receipt of the call, the drive to the scene, and the on-scene care—are all parts of handling the current call, but they don’t signify it’s finished.