Which of the following is true for cpr chest compressions?
a. compressions should be between 2.5 and 3 inches.
b. 50 compressions should be followed by 2 rescue breaths.
c. 100 compressions should be performed every minute.
d. elbows should be relaxed.

The answer is option C. 100 compressions should be performed every minute. Cardiopulmonary Resuscitation or CPR is an emergency technique used in life-saving situations such as cardiac arrest or drowning. CPR is done when upon assessment, pulse rate is not detected. CPR compressions vary whether the patient is an adult, child or infant. It should have 30 compressions followed by 2 rescue breaths.