Which of the following best describes high-quality CPR?

High-quality CPR is characterized by consistent compressions that maintain both adequate depth and a proper rate. This means that compressions should be forceful enough to create effective circulation and should ideally be delivered at a rate of 100 to 120 compressions per minute. Maintaining this standard ensures that blood flow to vital organs, particularly the brain and heart, is optimized during cardiac arrest situations.

When performing CPR, it's also crucial to minimize interruptions between compressions and ensure that chest recoil is allowed after each compression to maximize blood return to the heart. This approach is supported by guidelines that emphasize the rhythm and strength of compressions as key factors in improving the chances of survival in cardiac arrest cases.

The other options fall short of these standards; for instance, shallow compressions do not create sufficient pressure to circulate blood effectively, and slow compressions fail to meet the necessary rate. Moreover, while chest compressions are essential, excluding ventilation altogether is not in line with optimal CPR, particularly in cases where rescue breaths can be administered effectively.