What is the appropriate technique for delivering breaths during bag-mask ventilation?

The appropriate technique for delivering breaths during bag-mask ventilation involves using an appropriately sized mask, creating a proper seal, and delivering breaths over one second. This method ensures that the ventilation is effective and minimizes the risk of air entry into the stomach instead of the lungs. By using a correctly sized mask, you can achieve a better seal, which is crucial for effective ventilation. Creating a seal prevents air from escaping around the edges of the mask, allowing the breaths to be delivered directly into the airway. Delivering breaths over a duration of one second allows for adequate inflating of the lungs without causing hyperventilation, which can lead to complications such as gastric distention or decreased circulation.

In contrast, delivering breaths quickly without regard for timing can cause unnecessary complications, and using a large mask for all patients does not accommodate individual facial anatomy, which is essential for a proper seal. Finally, failing to check for a seal would compromise the effectiveness of the ventilation, as the goal is to ensure that the breaths provided are reaching the lungs rather than escaping through any gaps.