How quickly does the chance of survival decrease for patients with ventricular fibrillation who do not receive bystander CPR?

The correct answer indicates that the chance of survival for patients with ventricular fibrillation who do not receive bystander CPR decreases at a rate of 7-10% every minute. This rate highlights the critical importance of prompt CPR in cases of cardiac arrest. When a person experiences ventricular fibrillation, their heart is unable to effectively pump blood, which leads to rapid deterioration of the patient's condition. The longer the heart remains in this chaotic rhythm without effective intervention, such as CPR or defibrillation, the lower the likelihood of a favorable outcome.

By providing immediate bystander CPR, oxygenated blood can continue to flow to vital organs, particularly the brain and heart, significantly enhancing the chances of survival and recovery. This statistic serves as a powerful reminder of the urgency required in responding to cardiac emergencies and underscores the need for public awareness and training in CPR techniques.