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Bhavani Shankar Kodali MD

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Physics of capnography

Bhavani Shankar Kodali MD
 
Factors affecting IR Spectrography

 

 

Inhalational agents do not affect CO2 measurement



The low concentrations of halogenated anaesthetic agents used during anaesthesia absorb IR energy at different wave lengths (around 3.3 milli microns) and their interference is not considered to be important.1

Reference:
Carbon dioxide monitors. Health Devices;15:255-85.

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