What should a coach driver do if a passenger becomes violently ill or suffers a suspected cardiac arrest during a highway journey?

1. Ignore the medical emergency and continue driving for another 500 km
2. Eject the sick passenger onto the motorway shoulder
3. Pull over immediately in the nearest safe lay-by or emergency bay, alert emergency medical services (via 144 / 112), deploy the onboard first-aid kit / AED defibrillator if available, request assistance from qualified passengers, and begin CPR if required
4. Ask other passengers to perform surgery