Which of the following is a key component of CPR?

Effective chest compressions are a key component of CPR because they play a crucial role in maintaining blood flow to the heart and brain during cardiac arrest. Compressions help to mechanically pump blood by mimicking the heart's pumping action. This is vital for preserving brain function and significantly increases the likelihood of survival until advanced medical help arrives.

In CPR, chest compressions should be performed at a rate of 100 to 120 compressions per minute and at a depth of about 2 inches for adults. This ensures that adequate circulation is maintained. While rescue breaths can be important in some CPR protocols, the recent guidelines emphasize that high-quality chest compressions are essential for maximizing the chances of survival.

Positioning the victim on their side, while it may be appropriate in certain situations for unconscious but breathing individuals, is not a priority during active CPR for someone who is in cardiac arrest. Focusing on effective chest compressions ensures that the most critical aspect of resuscitation is addressed directly and efficiently.