What is the first assessment step to take when dealing with a non-breathing patient?

When dealing with a non-breathing patient, the first assessment step is to assess the airway. This is crucial because the airway must be clear for any subsequent actions, such as delivering rescue breaths or performing chest compressions, to be effective. If the airway is obstructed, the patient cannot effectively receive oxygen or ventilation, regardless of other interventions.

By checking the airway first, you are identifying if there is an obstruction that needs to be addressed immediately. This step ensures that any interventions applied afterward will be productive and could potentially restore normal breathing or circulation. Once the airway is assessed, if it is clear and the patient remains unresponsive and non-breathing, you can then proceed with further interventions, such as administering rescue breaths or starting compressions as appropriate.