What happens to air during ventilation through a King airway?

When ventilation occurs through a King airway, the configuration of the device allows air to pass below the proximal cuff. The King airway is a type of supraglottic airway device designed to create a secure airway for patients who may not have an intact gag reflex or those who are unresponsive.

The proximal cuff is located in the oropharyngeal region, helping to seal off the airway to prevent aspiration and ensure proper ventilation. When air is forced in during ventilation, it travels through the inflation port and bypasses the cuff, entering the trachea and effectively delivering oxygen to the lungs. This design permits air to flow directly into the trachea for effective ventilation.

The anatomy of the King airway and the placement of its cuffs dictate that airflow can freely pass below the proximal cuff while also allowing for the necessary sealing that helps maintain ventilation. Understanding this flow pattern is crucial for properly utilizing the King airway in emergency scenarios.