D – Danger / Ensure Safety
Before approaching: check the scene for hazards to yourself, bystanders, and the casualty (e.g. water, electricity, debris). Make it as safe as possible.
R – Response
Check if the casualty is responsive. Introduce yourself, ask “Are you OK?”, gently tap shoulders.
Use AVPU scale: Alert / responds to Voice / responds to Pain / Unresponsive.
S – Shout for Help / Send for Help
If no one else is around, shout loudly for assistance.
If possible, designate someone to call emergency services before you proceed, or call yourself if alone.
A – Airway
If the casualty is unresponsive, open the airway (head tilt – chin lift, unless spinal injury suspected; if suspected, use a jaw thrust).
Look inside the mouth; remove any obvious obstruction (only if visible, do not do blind finger sweeps).
B – Breathing
Check for normal breathing (look, listen, feel) for no more than 10 seconds.
Be aware that agonal gasps are not normal breathing — treat them as signs of cardiac arrest.
C – Circulation
If the casualty is unresponsive and not breathing normally: assume no circulation / cardiac arrest and begin CPR immediately.
If breathing but there is severe bleeding, treat that first.
Swap to resuscitation manikin to practice / demonstrate.
Simulate a Call 999 (or local equivalent) / ensure emergency response is activated.
On the rescue manikin, Start CPR: 30 chest compressions : 5 initial rescue breaths, (assume this is a diver, in water, possible water in lungs). Perform cycles for 2 minutes. Use proper depth (≈ 5-6 cm in adults), rate (100-120/min), allow full recoil. Resuscitation Council UK+2SJA+2
If the casualty starts showing signs of choking (e.g., inability to speak, cough weakly, etc.):
Turn cautiously onto their side into recovery / safe airway (support head / neck; watch for spinal injuries).
Encourage or help to clear the airway (if visible foreign body).
Reassure them (verbal comfort), check responses again (AVPU), monitor for changes.
Place casualty in Recovery Position (safe airway position) if they are breathing normally but still unresponsive/sedated/unconscious. Continue to monitor breathing, pulse, and consciousness.
Use bystanders as needed (assist with calling, fetching defibrillator, etc.), but ensure they return / stay close.
Continue reassuring the casualty.
When professionals arrive they may ask you to continue CPR whilst they prepare to take over.
DIVERS MUST NOT HAVE ENTONOX (not all medics are divers and may not know this).
1. Consciousness: AVPU – Alert / Voice / Pain / Unresponsive
2. Orientation: Name – Place – Time
3. Speech: Listen for slurred or confused speech
4. Face: Ask to smile – look for droop
5. Arms/Legs: Hold both arms out (drift?), lift legs, check strength
6. Sensation: Ask if numb/tingly on either side
7. Balance: Stand (if safe) – watch for loss of balance
Any abnormal sign = give 100% O₂, keep flat/warm, urgent evacuation.
Recognise cardiac arrest: someone unresponsive and not breathing normally → start CPR. Agonal breathing is not normal. Resuscitation Council UK+1
Call for help early (send someone / shout) so help, including defibrillator or EMS, can arrive while you begin resuscitation. Resuscitation Council UK+1
In CPR: compression depth and rate are crucial; minimize interruptions. Resuscitation Council UK+1
For choking: follow current first aid steps (encourage coughing, back blows, abdominal thrusts if needed for adults).
Debrief & Assessment
After the scenario ends, debrief with examiner / assessor: what worked, what could be improved.
Use any relevant assessment sheets (for example, your “5 minute neuro” or other checklists) to check for neurological signs, consciousness, etc.
Remember - We do on instinct what we have been trained to do.