Breakdown, accidents & first aid

In an office in Maastricht a colleague has fallen down the stairs. She does not respond when you shake her shoulders, but she is breathing normally. What do you do?

I call 112 and leave her lying until the ambulance arrives, as I know no first aid
I call 112, open her airway and put her in the recovery position
I call 112 and start 30 chest compressions, because she is unconscious

Explanation

False — You wait because you have no course. The step plan is meant for bystanders: with unconsciousness and breathing you open the airway and put the victim in the recovery position (Book p.171-173).

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