What is the proper first aid action for a nosebleed?

The proper first aid action for a nosebleed is to have the person sit upright and lean forward. This position helps prevent blood from flowing down the throat, which can lead to choking or swallowing the blood. By leaning forward, the individual allows any blood to drain out of their nostrils rather than back into their mouth or down their throat. Additionally, sitting upright helps to reduce blood flow to the nose due to gravity, potentially minimizing the bleeding.

This approach also allows for easier access to pinch the nostrils together, which is a common method to help control the bleeding. Keeping the person calm and maintaining this position can facilitate the body's natural ability to clot and stop the bleeding more effectively.