In performing back blows on an infant, where should you strike?

When performing back blows on an infant, the correct location to strike is in the center of the back between the shoulder blades. This area is chosen because delivering back blows in this location maximizes the effectiveness of the technique in dislodging an object that may be obstructing the airway. The blows should be firm and delivered with sufficient force to create pressure on the lungs, potentially expelling any blockage. The positioning also ensures minimal risk of injury to the infant, providing targeted support to alleviate choking.

Other locations, such as the lower back near the waist or at the base of the neck, are not effective for this technique and could pose safety risks. The upper back near the head is also not ideal, as it would not provide the necessary force to effectively clear the airway obstruction. Thus, striking between the scapulae is not only effective but also the safest approach to assist an infant in choking emergencies.