Which of the following is essential for effective ventilation in CPR?

Effective ventilation during CPR is crucial for delivering oxygen to the lungs and maintaining adequate blood oxygenation in a patient experiencing cardiac arrest. The proper technique for ventilation involves ensuring a good seal between the mask and the patient's face, which prevents air from escaping and guarantees that the breaths given effectively inflate the lungs. Additionally, it’s important that each breath is given with enough force to produce visible chest rise, indicating that the air is entering the lungs properly.

When a proper seal is established and the lungs are adequately inflated, the chances of improving the patient's oxygenation increase significantly. This step is vital, especially in pediatric patients, as their anatomy and physiology can make ventilation more challenging; hence, a proper approach is even more critical in these cases.

While extended chest compression duration and suction devices can play roles in resuscitation, they are not as directly tied to the effectiveness of ventilation itself. Moreover, delivering rescue breaths without chest compressions does not align with current CPR guidelines, which advocate for the integration of both compressions and ventilation to enhance circulation and oxygenation.