When is it safe to remove the endotracheal tube?

When is it safe to remove the endotracheal tube?

• A. When the animal had recovered and is alert
• B. When the pilot balloon has collapsed
• C. Anytime during the procedure
• D. At the discretion of the investigator

Answer: (B)

The key idea is that the endotracheal tube should only be removed once the cuff is no longer inflated. The outward sign of that is the pilot balloon collapsing. Deflating the cuff allows the tube to be withdrawn without leaving a sealed cuff in the trachea, which could cause trauma or obstruction if the cuff were still inflated. In practice, you also want the animal to have recovered enough to breathe on its own and protect its airway, but the immediate, observable readiness criterion tied to safety during removal is that the cuff is deflated, indicated by the pilot balloon collapsing.

The key idea is that the endotracheal tube should only be removed once the cuff is no longer inflated. The outward sign of that is the pilot balloon collapsing. Deflating the cuff allows the tube to be withdrawn without leaving a sealed cuff in the trachea, which could cause trauma or obstruction if the cuff were still inflated. In practice, you also want the animal to have recovered enough to breathe on its own and protect its airway, but the immediate, observable readiness criterion tied to safety during removal is that the cuff is deflated, indicated by the pilot balloon collapsing.