The emergency department nurse is caring for a child suspected of acute epiglottitis. Which interventions apply in the care of the child? 
1. Obtain a throat culture.
2. Auscultate lung sounds.
3. Maintain the child in a supine position.
4. Obtain a pediatric-size tracheostomy tray.
5. Place the child on an oxygen saturation monitor.
6. Prepare the child for a lateral neck and chest x-ray.