Final answer:
The universal rate for compressions in cardiac arrest is 100 compressions per minute, with a depth of at least 5 cm, until professional help arrives or the patient is declared deceased.
Step-by-step explanation:
The universal rate for compressions in all cardiac arrest victims is 100 compressions per minute. This rate of chest compressions is critical for maintaining blood flow, especially to the brain where irreversible damage occurs within minutes of blood flow loss. Cardiopulmonary resuscitation (CPR) is a lifesaving technique that requires proper training to perform effectively and safely. Notably, the depth of chest compressions should be at least 5 cm. CPR is typically continued until professional healthcare providers can take over or the patient is declared deceased.