Final answer:
In two-rescuer infant CPR, the compressor should use the two-finger technique to perform chest compressions effectively, ensuring that appropriate force is applied to the infant's chest at a rate of 100-120 compressions per minute.
Step-by-step explanation:
In 2 rescuer infant CPR, the compressor should always use two fingers for chest compressions, positioned just below the nipple line at the center of the chest. This technique, known as the two-finger technique, ensures that appropriate force is applied to the infant's smaller and more delicate sternum. The compressor should perform compressions that depress the chest at least one-third the depth of the chest, approximately 1.5 inches (about 4 centimeters), at a rate of 100-120 compressions per minute. It is essential that these compressions are done effectively to maintain blood circulation and minimize potential injury to the infant. High-quality chest compressions are imperative, and both rescuers should be well-trained in CPR technique to prevent harm such as broken ribs or damage to internal organs.