the determination of the end-tidal partial pressure of carbon dioxide.
Measurement of CO2 in the proximal airway during inspiration and expiration. End tidal CO2 (or CO2 at the end of exspiration) is particularly useful clinically.
capnometry/cap·nom·e·try/ (-tre) the determination of the end-tidal partial pressure of carbon dioxide.
the measurement of carbon dioxide in a volume of gas. The most common monitoring units are based on the selective absorption of infrared light by carbon dioxide and water vapor. Capnometry may also be performed by using mass spectrometry. See also end-tidal CO2.
capnometry(1) Capnography, see there
(2) The science of measuring atmospheric concentrations of smoke—e.g., in smoke plumes or in flue gas.
The process of measuring and recording the carbon dioxide concentration of exhaled air at the patient's airway using a capnometer.