After intubating an adult cardiac arrest patient, how should you provide ventilations during chest compressions?

To provide effective ventilations during chest compressions for an adult cardiac arrest patient, it's essential to maintain an appropriate balance between compressions and ventilations while ensuring adequate oxygenation. Delivering each breath over 1 second at a rate of 10 to 12 breaths per minute allows for sufficient time between breaths to facilitate proper chest rise and ensure that air enters the lungs effectively without interrupting the compression cycle too frequently.

This approach aligns with the recommendations to minimize interruptions to chest compressions, which are critical for maintaining blood flow and perfusion to vital organs during cardiac arrest. By providing ventilations at the specified rate and duration, you can achieve optimal ventilation without hindering the overall resuscitation efforts, focusing on both oxygen delivery and maintaining high-quality compressions.

The other options suggest either too rapid or inappropriate methods of providing ventilations, which could compromise the effectiveness of chest compressions or result in inadequate ventilation. Using the correct ventilation method helps maximize the chances of a successful resuscitation and is critical for patient outcomes in cardiac arrest situations.