A school-aged child develops a nosebleed (epistaxis). Which action should the nurse take?

A. Turning the head to the side is not recommended, as it can cause blood to drain into the throat. B. Applying pressure to the forehead does not help control nasal bleeding. C. Sitting upright and applying pressure to the sides of the nose is the correct action to stop the bleeding and prevent blood from going down the throat. D. Keeping the child flat can increase the risk of blood entering the airway, which can lead to aspiration.