Which technique should NOT be used when performing CPR on infants?

When performing CPR on infants, using the heel of one hand for chest compressions is not an appropriate technique. Instead, the correct method involves using two fingers placed just below the nipple line to deliver gentle compressions. This approach is specifically designed to accommodate the smaller chest size and fragile rib structure of infants, minimizing the risk of injury while still providing effective circulatory support.

The other techniques mentioned are appropriate for infant CPR. For instance, performing compressions at a rate of 100-120 per minute is consistent with current guidelines, ensuring that the heart is adequately stimulated to circulate blood. Additionally, giving gentle rescue breaths is crucial for infants, as they have a lower respiratory reserve and need careful breath support. Therefore, comprehending the nuances involved in infant CPR can significantly improve the likelihood of a positive outcome in a critical situation.