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Designed, Produced, and maintained (Edition 10, March 2019) by 

Bhavani Shankar Kodali MD

Effect of Inhalational Agents

Physics of capnography

Bhavani Shankar Kodali MD
 
Factors affecting IR Spectrography

 

 

Inhalational agents do not affect CO2 measurement

Inhalational agents absorb IR at lower frequency


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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