What is the correct compression-to-breath ratio for infant CPR with one rescuer?

The correct compression-to-breath ratio for infant CPR when performed by one rescuer is 30 compressions to 2 breaths. This ratio is consistent with the recommended approach for single rescuer CPR for infants. In this scenario, the rescuer aims to deliver effective chest compressions at a rate of 100 to 120 per minute, followed by the appropriate number of breaths in between compressions.

For infants, the compressions should be at a depth of about 1.5 inches (or one-third the depth of the chest) to ensure efficacy while minimizing the risk of injury, contrary to the 2 inches mentioned in other options. This distinction is critical because effective compressions are essential for maintaining blood circulation during cardiac arrest.

Understanding the standard practice of 30:2 for one rescuer helps ensure that immediate and correct intervention can be provided in an emergency situation, which significantly improves the infant's chances of recovery.