Endotracheal Intubation & LMA

Securing the airway is the single most important skill in anaesthesia and emergency medicine. This note covers orotracheal and nasotracheal intubation, supraglottic airway devices (chiefly the laryngeal mask airway), the equipment behind each, and — most tested of all — how you confirm the tube is in the trachea and not the oesophagus. The larynx sits at C3–C6 in adults, higher (C2–C3) in infants, which is why pae…