What are your first-priority actions when providing pre-medical aid to an adult in the event of a sudden cessation of blood circulation and absence of breathing?

• 1Begin cardiopulmonary resuscitation, and only after breathing appears call emergency medical services.
• 2Call emergency (ambulance) medical services and follow the dispatcher's instructions, begin cardiopulmonary resuscitation.
• 3Move the adult into a stable side position, checking for breathing every 5 minutes.