A nurse is planning care for a child who has suspected epiglottitis. Which of the following actions should the nurse take?

The correct answer is D: Place the child in an upright position. This is because epiglottitis is a medical emergency where the epiglottis becomes inflamed and can lead to airway obstruction. Placing the child in an upright position helps to maintain a patent airway and reduces the risk of further obstruction. Visualizing the epiglottis with a tongue depressor (choice A) can potentially aggravate the condition and worsen the airway obstruction. Obtaining a throat culture (choice B) or transporting the child to radiology for a throat X-ray (choice C) are not immediate priorities in managing epiglottitis. Therefore, the most critical action is to ensure the child can breathe by placing them in an upright position.