Capnometry is the measurement and numerical display of the carbon dioxide concentration in the respiratory gas during the whole respiratory cycle (inspiration and expiration).
二氧化碳测定术是在整个呼吸循环过程(吸气和呼气)中气体中二氧化碳的测定和数值显示。
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Hence capnometry offers a continuous, non-invasive way to reflect the partial pressure of carbon dioxide in arterial blood, which is directly determined by alveolar ventilation.