All of the following are example of definite airways,except –: (A) Nasotracheal tube, (B) Orotracheal tube, (C) Laryngeal Mask airway, (D) Cricothyroidotomy
Answer is C. Definite airways (that protect from aspiration) are :- Endotracheal intubation (oro-tracheal or naso-tracheal) and Surgical airways (tracheostomy, cricothyroidotomy).
Airways that are not definite (do not adequately protect from aspiration) are :- Nasopharyngeal airway, oropharyngeal airway, LMA.