Outline the sequence of events in a primary survey when carrying out first aid.

1. Assess the scene for any potential dangers and ensure it is safe to approach the casualty.
2. Check for responsiveness by gently shaking the casualty and asking if they are okay.
3. Open the casualty's airway by tilting their head back and lifting their chin.
4. Check for breathing by looking, listening, and feeling for breaths for up to 10 seconds.
5. If the casualty is not breathing, start CPR by giving 30 chest compressions followed by 2 rescue breaths.
6. If the casualty is breathing, check for severe bleeding and apply direct pressure to any wounds to control bleeding.
7. Assess the casualty's level of consciousness and look for any signs of shock.
8. Check for any other life-threatening injuries such as head, neck, or spinal injuries.
9. Keep the casualty warm and comfortable while waiting for emergency medical services to arrive.
10. Continuously monitor the casualty's condition and provide reassurance and support until help arrives.

Primary Survey (ABCDE)

A: Airway

- Check for responsiveness (tap and shout)
- Ensure airway is clear:
- Open airway using head tilt-chin lift or jaw thrust maneuver

B: Breathing

- Check for breathing:
- Look, listen, and feel for chest rise and fall
- If not breathing, start rescue breathing immediately

C: Circulation

- Check for signs of circulation:
- Carotid pulse
- Blood pressure (if possible)
- Stop any bleeding with direct pressure

D: Disability

- Check for neurological status:
- AVPU scale (Alert, Verbal, Pain, Unresponsive)
- Pupil response
- GCS (Glasgow Coma Scale)

E: Exposure

- Undress the patient and check for any injuries or other signs of distress
- Maintain body temperature with a blanket or warm clothing