With an unconscious person, you first open the airway and check breathing. This tells you whether they are breathing on their own or you need to start cardiopulmonary resuscitation.
When you find an unconscious victim, the very first step is to open the airway and check breathing. This tells you whether they need immediate cardiopulmonary resuscitation. Without an open airway and breathing, all other first-aid actions are useless.
Option 1. An unconscious person must never be given fluids, because they cannot swallow and may choke.
Option 2. The victim is turned on their side into the recovery position only after making sure that the airway is open and they are breathing.
Option 3. Although keeping a normal body temperature matters later, checking breathing is the irreplaceable, life-saving priority.