Which of the following is false about artificial tracheal airways and weaning? A) There are decreases in tube inner diameter (ID) and increases in V_E increase the work of breathing. B) The added work due to artificial airways can increase ventilator dependence. C) Artificial airways can increase the work of breathing nearly three-fold. D) Tracheostomy tubes increase the work of breathing more than can endotracheal tubes.

Question

Quizplus · Accepted Answer

The presence of an artificial airway may increase airway resistance nearly three-fold, although some evidence calls into question the assumption that breathing through an endotracheal tube offers a greater work of breathing than does breathing through a natural airway postextubation. In a study with 14 successfully extubated patients, at the end of a 2-hr spontaneous breathing trial, there was no difference in work of breathing before and after extubation.

Which of the Following Is False About Artificial Tracheal Airways