Flat capnogram found in A/E
in bronchospasm,there is prolonged expiratory upstroke(abscence of phase 3 plateau). in tube displacement,disconnection,accidental extubation,ventilation failure,it is flat.
Disconnection of anesthetic tubing
Accidental extubation
Mechanjca1 ventilation failure
Bronchospasm
Preoperative assessment and monitoring in anaesthesia