Final answer:
The two-thumb encircling technique is preferred for two rescuers performing CPR on infants because it allows for more effective, consistent, and controlled chest compressions, which are critical for maintaining blood circulation in an emergency.
Step-by-step explanation:
When performing CPR on infants, the two-thumb encircling technique is often recommended for two rescuers over the one-rescuer two-thumb technique. The main advantage of the two-thumb encircling method is that it allows for more effective chest compressions, leading to better blood flow and oxygen delivery during CPR. This technique, where both rescuers' thumbs are placed side by side on the sternum, encircled by the fingers, also provides the benefit of allowing for steadier and more controlled compressions with minimal fatigue, as rescuers can alternate if necessary.
Additionally, with the two-thumb encircling technique, rescuers can achieve a greater depth and consistent rate of compressions, meeting the current standards which call for a compression depth of at least 5 cm and a rate of 100 compressions per minute. It's of paramount importance to undertake proper training for CPR, as incorrect application could result in severe injuries to the infant. Certified courses frequently include practice on mannequins to ensure that individuals are adept in the right techniques.