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A CO-oximeter 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 (COHb) and methemoglobin (MetHb).
Modern methods include pulse oximetry with a CO-oximeter, and a variety of other analytical techniques. [26] [27] Most methods require laboratory equipment, skilled technicians, or expensive electronics therefore rapid and economical detection technologies remain in development.
A CO-oximeter can be used to determine carboxyhemoglobin levels. [ 108 ] [ 109 ] Pulse CO-oximeters estimate carboxyhemoglobin with a non-invasive finger clip similar to a pulse oximeter . [ 110 ] These devices function by passing various wavelengths of light through the fingertip and measuring the light absorption of the different types of ...
She is a co-author of a study published in 2024 that found unreliable pulse oximeter readings might limit the way Black patients with heart failure qualify for those potentially lifesaving procedures.
A pulse oximeter probe applied to a person's finger. A pulse oximeter is a medical device that indirectly monitors the oxygen saturation of a patient's blood (as opposed to measuring oxygen saturation directly through a blood sample) and changes in blood volume in the skin, producing a photoplethysmogram that may be further processed into other measurements. [4]
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