True about endotracheal intubation is –
Intubation decreases the dead space, as nasal space is bypassed and the lumen of endotracheal tube is less than that of natural airway.
Endotracheal intubation increases the airway resistance.
Bronchial intubation is the most common perioperative complication and sore throat is the most common post operative complication.
It reduces normal anatomical dead space
It produces decrease in resistance to respiration
Subglottic edema is most common complication
All of the above