What is the correct compression depth for adult CPR?

The correct compression depth for adult CPR is at least 2 inches (5 cm). This recommendation is based on extensive research that shows this depth is effective in generating adequate blood flow during cardiac arrest. Compressions that are too shallow may not effectively circulate blood to vital organs, which can significantly lower the chances of survival.

Additionally, compressing to a depth of at least 2 inches ensures that the chest cavity is adequately compressed to create the necessary pressure to push blood out of the heart and into the circulation system, which is essential for maintaining perfusion.

Realizing that the standard has been established based on data from clinical studies is critical in understanding why this depth is emphasized. It strikes a balance between providing enough force to be effective while minimizing the risk of injury to the patient.