Commercial restraining devices, such as the "Pigg-o-Stat," can be used on infants who cannot yet hold their own head up.

A molecule of hemoglobin contains four atoms of ________

a. iron b. potassium c. vitamin C d. sodium

What is a cause of gastric distention during rescue breathing?

a. The patient begins to breathe on his own. b. The rescuer uses too little air to ventilate the patient. c. The patient’s head is tilted too far back. d. The patient’s airway is partially or completely blocked.