When providing bag-mask ventilation to a person, why must you avoid giving excessive breaths?

Providing bag-mask ventilation effectively is essential for ensuring adequate oxygenation and ventilation of a person in need. When giving ventilations, avoiding excessive breaths is crucial because it can lead to complications, such as gastric distension and airway obstruction.

Excessive ventilation can increase the pressure within the airway and the stomach, causing air to enter the stomach rather than the lungs. This can result in gastric distension, which could further compress the diaphragm and reduce the effectiveness of subsequent chest compressions during CPR. Additionally, if the airway becomes obstructed due to the accumulation of air or due to improper placement of equipment, it can severely hinder the person's ability to breathe effectively.

By understanding the implications of excessive breath volumes during bag-mask ventilation, rescuers can ensure that they provide appropriate and effective assistance, maximizing the chances of survival for the person in distress.