What is the correct sequence for performing mouth-to-mouth-and-nose breaths for an infant?

The correct sequence for performing mouth-to-mouth-and-nose breaths for an infant emphasizes the importance of a proper seal and the technique used to deliver breaths effectively. Placing your mouth over the infant's mouth and nose ensures that the breaths are delivered directly into the airway, minimizing any leaks that could occur if the seal is not tight.

This technique is specifically designed for infants since their anatomy is quite different from adults. It allows for the most effective ventilation by covering both the mouth and the nose, ensuring that air gets into the lungs without escaping. This is especially critical because infants have a higher risk of airway obstruction, and careful attention to the technique can improve the chances of successful resuscitation.

In contrast, other options may not follow the correct emergency response protocols. For instance, pinching the nose first could impede effective airflow if not done while also ensuring a proper seal. Giving a breath before performing the head tilt-chin lift is often ineffective, as a clear airway is essential for successful ventilation. Furthermore, performing chest compressions first would be unnecessary when the goal is to establish a breathing pathway using the proper ventilation technique. Thus, understanding and implementing the correct method for administering breaths is vital for effective BLS in infants.