Which sign indicates a complete airway obstruction?

The sign that indicates a complete airway obstruction is silent, exaggerated attempts at inspiration. When a person experiences a complete blockage of the airway, they are unable to move air in and out of their lungs. This results in the absence of breath sounds and the absence of an effective cough, as the obstruction prevents normal respiratory function.

Instead, the individual may exhibit exaggerated efforts to breathe, which can look like gasping or straining. These attempts signify that the body is trying desperately to get air despite the airway being blocked. In emergency settings, recognizing these silent, exaggerated efforts is critical, as it indicates that immediate intervention is required to clear the obstruction and restore adequate airflow.

The other signs listed do not reflect a complete airway obstruction. For instance, a weak cough may suggest partial obstruction or other respiratory issues rather than a complete failure to breathe. Restlessness and agitation could be caused by numerous factors, including anxiety or hypoxia, but they are not definitive signs of obstruction. A regular breathing pattern indicates that the airway is open and functioning normally, which contradicts the condition of complete obstruction. Understanding these distinctions is essential for effective assessment and response in emergency situations involving airway management.