What is the correct ratio of compressions to ventilations for a one-responder cycle for an infant?

The correct ratio of compressions to ventilations for a one-responder cycle for an infant is 15:2. This ratio is established in cardiopulmonary resuscitation (CPR) guidelines specifically for infants to ensure that adequate blood circulation and oxygenation are maintained during resuscitation efforts.

In this scenario, the rescuer delivers 15 chest compressions followed by 2 rescue breaths. This approach is particularly important because infants have different physiological needs compared to adults or older children, so the emphasis is on providing more compressions relative to the number of ventilations, which helps to maintain circulation while also addressing the child’s need for oxygen.

This ratio reflects the higher rate of metabolic demand in infants; they require immediate and efficient circulatory support. Understanding this ratio helps in practicing effective BLS in emergency situations involving infants, making it crucial knowledge for anyone trained in CPR for this age group. Other ratios, like 30:2, are more applicable for adults and older children, while the 15:2 ratio is specifically tailored to the needs of infants during CPR.