If a passenger on a long-distance coach suddenly exhibits symptoms of acute myocardial infarction (heart attack) or stroke, what should the driver do?

1. Drop the passenger off on the highway shoulder to await a taxi
2. Continue driving to the final destination 500 km away as scheduled
3. Instruct other passengers to ignore the medical situation
4. Broadcast a request for medical assistance among passengers, assist the patient into a comfortable resting position, dial 120 emergency medical services, and coordinate emergency highway exit to the nearest hospital