The diagram of a correctly positioned proseal-type Laryngeal Mask Airway is provided below. Above what site is the arrow marked area of the airway positioned?
B. Upper end of trachea
C. Vocal cords
D. Above esophagus
Ans: D. Above esophagus
(Ref Miller 7/e 1584; Lee I3/e p206)
- The arrow in the given picture shows the internal gastric tube (drainage tube) kept just above the esophageal opening to aspirate GI secretions.
- Reusable supraglottic airway device that incorporates a gastric drainage tube placed lateral to the main airway tube and which ends at the tip of the mask.
- The gastric drainage tube is designed to separate the gastrointestinal and respiratory tracts, allowing regurgitated fluid to pass up the drain tube and bypass the glottis, thereby protecting the airway from soiling in the event of passive regurgitation.