What is the purpose of using both thumbs in the 2 thumb encircling hands technique for infant CPR?

Using both thumbs in the two-thumb encircling technique for infant CPR is primarily aimed at ensuring consistent depth and force of compressions. This technique allows the rescuer to apply compressions more effectively by providing a stable and secure grip around the infant's chest. The thumbs can be positioned directly over the sternum, allowing for better control and enabling the rescuer to deliver compressions that meet the recommended depth and rate.

The use of both thumbs helps distribute the force evenly across the chest, which is essential to maintain the effectiveness of each compression. Consistency in the depth and force of compressions is critical for providing adequate blood flow to vital organs during a cardiac arrest scenario. Furthermore, this technique can help reduce fatigue for the rescuer, allowing for longer periods of effective compressions if needed.