Definition and purpose of first aid

Summary

First aid is the first and immediate assistance given to someone with a medical emergency, provided to preserve life, prevent the condition from worsening, or support recovery until professional medical services arrive. It is typically carried out by people with basic first-response or medical training, and it may extend to related areas such as mental health first aid and psychological first aid for early support in people at risk of developing conditions like PTSD. The purpose of first aid is to prevent death or serious injury from getting worse. This is commonly expressed through the “three Ps”: preserve life, prevent further harm, and promote recovery. Because emergencies can involve life-threatening threats to breathing, circulation, bleeding control, and neurological status, first aid is usually guided by structured priorities and protocols (such as ABCDE/csABCDE and CPR-focused CABD/ABC sequences) to ensure the most critical actions are taken first with limited resources and time.

Key Points

• 1

  First aid provides immediate help in a medical emergency to preserve life, prevent worsening, and support recovery until medical professionals take over.

• 2

  First aid aims are commonly summarized as the “three Ps”: preserve life, prevent further harm, and promote recovery, using prioritized protocols (e.g., ABCDE/csABCDE and CPR sequences).