Which of the following should NOT be performed on a responsive infant who is choking?

In a choking scenario involving a responsive infant, it is crucial to use techniques that are specifically designed for their developmental stage. Delivering abdominal thrusts, commonly referred to as the Heimlich maneuver, is not appropriate for infants. This is because infants have a different anatomical structure and can be more easily injured due to their smaller airways and fragile bodies. Instead, the recommended approach is to encourage the infant to cough if they are able to, as this is often an effective way to clear a blockage.

Back blows, which involve delivering between 5 to 10 firm blows to the infant's back, are also an appropriate method for helping to dislodge an object. Additionally, assessing the infant's ability to breathe is essential to determine the severity of the situation and to decide on the appropriate response. Thus, abdominal thrusts should be avoided in this situation to prevent harm and to ensure effective care.