What action should you take for an unconscious casualty who is breathing and seems stable?

For an unconscious casualty who is breathing and appears stable, it is crucial to ensure their airway remains open and to place them in a position that minimizes the risk of aspiration or airway obstruction. Inserting a nasopharyngeal airway is an appropriate action because it helps maintain an open airway, especially in an unconscious person whose tongue might obstruct it. The recovery position is also vital as it allows any fluids to drain out of the mouth and helps prevent choking, while supporting effective breathing.

Taking these steps is essential for ongoing management of unconscious casualties, balancing the need for intervention with the understanding that they are breathing and stable. Other options, such as starting CPR, are unnecessary in this situation, as CPR is reserved for cases where the casualty is not breathing or has no pulse. Waiting for a unit leader may delay necessary intervention and monitoring without any intervention could lead to complications. Therefore, the combined actions of inserting the airway and positioning the casualty correctly are crucial for their safety and well-being.