Final answer:
The 2015 AHA guidelines for CPR recommend applying pressure to the sternum in order to maintain blood flow and prevent damage to the brain during cardiac arrest. CPR should be performed at a rate of 100 compressions per minute and to a depth of at least 5 cm. It is important to be trained in CPR before administering it.
Step-by-step explanation:
The 2015 AHA (American Heart Association) guidelines for CPR (cardiopulmonary resuscitation) recommended BLS (basic life support) sequence of steps involve applying pressure to the sternum to maintain blood flow in the event of a cardiac arrest. The recommended positioning of the hands on the sternum is between the lines at T4 and T9.
CPR is a critical emergency technique that manually compresses the heart to push blood into the circulation, preventing irreversible damage and death of neurons due to lack of blood flow to the brain. Current standards call for compression of the chest at least 5 cm deep and at a rate of 100 compressions per minute. It is important to note that CPR should be performed by trained individuals to avoid inflicting additional severe damage on the patient and proper training is essential.
AEDs (automated external defibrillators) are commonly found in public places and are designed to be used by laypersons. CPR is often recommended before using a defibrillator.