A nurse observes circumoral cyanosis in an infant who is choking. Which of the following actions should the nurse take?

A. Performing a head tilt and chin lift is typically used in resuscitation for unresponsive infants, not for choking. It is not effective in clearing an obstructed airway in a conscious or choking infant. B. Placing the infant in a side-lying position and performing abdominal thrusts is incorrect. Abdominal thrusts are not recommended for infants. Back blows and chest thrusts are used to clear an infant's airway. C. Suctioning with a bulb syringe is appropriate for clearing mucus or secretions from the airway, but it would not be effective for a choking infant. The first action should be to attempt back blows or chest thrusts. D. Delivering back blows with the infant face down over the rescuer’s arm is the correct initial action. The infant should be supported by the arm, and back blows should be administered to try to expel the obstruction from the airway. This is the first step in the infant choking protocol.