How fast should chest compressions be administered in order to effectively deliver oxygenated blood?

Administering chest compressions at a rate of 100 per minute is considered optimal for effective cardiopulmonary resuscitation (CPR). This rate is recommended because it helps maintain blood flow and ensures that oxygenated blood reaches vital organs during a cardiac emergency. The ideal range for chest compressions is between 100 and 120 per minute, with 100 being a practical target that balances depth and rate, allowing rescuers to deliver high-quality compressions without fatigue or loss of effectiveness.

At speeds below this optimal range, such as 80 compressions per minute, there may not be sufficient blood flow to the heart and brain, which can diminish the chances of survival. Conversely, rates significantly above 120 compressions per minute may lead to inadequate depth of compressions and could hinder proper blood circulation due to the compressions being too rapid to allow full chest recoil between compressions. Thus, maintaining a rhythm of about 100 compressions per minute strikes an essential balance that maximizes cardiac output and supports the victim until advanced medical help arrives.