Which of the following is a function of cardiopulmonary resuscitation (CPR)?

Restoring breathing and circulation is the primary function of cardiopulmonary resuscitation (CPR). When an individual experiences cardiac arrest, the heart stops pumping blood, and as a result, oxygenated blood can no longer reach the brain and other vital organs. CPR involves chest compressions and rescue breaths, which work to manually circulate blood and provide oxygen to the body until emergency medical services can take over. This intervention is crucial for increasing the chances of survival and recovery, as it helps maintain blood flow to the brain and other organs, preventing irreversible damage.

The other choices, while related to electrical safety and emergency responses, do not accurately define the purpose of CPR. Preventing electrical shocks refers to safety measures taken to avoid injury from electrical sources, checking for electrical faults pertains to identifying issues within electrical systems, and monitoring heart rate, while important in medical contexts, does not capture the immediate life-saving actions associated with CPR.