Finger tip alt=NOTE I would suggest that this article use as its example device a standalone<unk> . Use the blood-gas-attached and 'peripheral' devices as alternative devices. A<unk>  is a device that measures the oxygen carrying state of hemoglobin in a blood specimen, including oxygen-carrying hemoglobin (O2Hb), non-oxygen-carrying but normal hemoglobin (HHb) (formerly, but incorrectly, referred to as 'reduced' hemoglobin), as well as the dyshemoglobins such as carboxyhemoglobin <unk> Hb) and methemoglobin (MetHb). The use of 'CO' rather than 'Co' or 'co' is more appropriate since this designation represents a device that measures carbon monoxide <unk>  bound to hemoglobin, as distinguished from simple<unk> y which measures hemoglobin bound to molecular oxygen—O2Hb—or hemoglobin capable of binding to molecular oxygen—HHb. Simpler<unk> s may report oxygen saturation alone, i.e. the ratio of oxyhemoglobin to total 'bindable' hemoglobin (i.e. oxyhemoglobin + deoxyhemoglobin-HHb).<unk> y is useful in defining the causes for hypoxemia, or hypoxia, (oxygen deficiency at the tissue level).
CO-oximeter
Hyperoxia test
Pulse oximetry
Plethysmograph
Carbon monoxide detector
Respiratory pressure meter
Hemoximetry
Oxygenation index