Which position should the infant be placed in while giving back blows?

When providing back blows to an infant in distress, the correct position is to have the infant lie across the rescuer's forearm, face down. This positioning allows gravity to assist in dislodging any object that may be obstructing the airway. The forearm acts as a stable support for the infant's upper body, making it easier for the rescuer to deliver strikes between the infant's shoulder blades with the heel of the hand.

In this position, the infant's head is lower than their chest, which is crucial because it utilizes gravity to help expel an object from the airway if one is present. This technique is safe and effective when performed correctly and is a key part of the guidelines for managing choking in infants. It's important to always ensure the infant is held securely to prevent any further risk of injury during the process.