![]() others are sidestream devices (with aspiration of gas that is transported to a sensor located a variable distance away).some are connected mainstream (flow through via an in-line adapter with universal connectors).can only be used once (colour does not change back, hence only useful for confirmation of ETT position in the trachea during intubation, not ongoing monitoring). ![]() devices are inserted on the end of an endotracheal tube or tracheostomy tube and connected to a ventilator circuit (via universal connectors).production of a quantitative ETCO2 value and allows assessment of waveform morphology (ETCO2 vs time).placed in line with ventilation and patient’s airway.Infrared analysers are most commonly used.Capnography provides a display of the quantity of exhaled CO 2 with time which produces a characteristic waveform.Capnometry devices provides measurement and numeric display of end tidal CO 2 (ETCO 2). ![]()
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