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Breath carbon monoxide is the level of carbon monoxide in a person's exhalation. It can be measured in a breath carbon monoxide test, generally by using a carbon monoxide breath monitor (breath CO monitor), such as for motivation and education for smoking cessation and also as a clinical aid in assessing carbon monoxide poisoning. The breath carbon monoxide level has been shown to have a close relationship with the level of CO in the blood known as carboxyhaemoglobin (%COHb) or "blood CO".〔 This correlation allows for the level of CO in the blood to be indirectly measured through a breath sample. ==Breath CO monitor== CO monitors measure carbon monoxide in parts per million (ppm) in breath. These monitors have become increasingly popular given that they allow for noninvasive testing and are inexpensive to use.〔 〕 Breath CO monitors function based on the detection of carbon monoxide gas with an electrochemical gas sensor.〔Robert E. Henderson, "Assessment and Management of Air Quality in the Workplace." Ergonomics Inc., 1996〕 Monitors typically incorporate an LCD display that provides a concentration level in a numeric format and/or colored indicators that correspond to various concentration ranges. Some device models also incorporate sound warnings when a pre-programmed concentration limit is exceeded. The various models of CO monitors currently available on the market vary widely in terms of accuracy, functionality, and price. Monitors have been designed to fit the variety of applications that exist for Breath CO monitoring. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Breath carbon monoxide」の詳細全文を読む スポンサード リンク
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