单词 | pulse oximetry |
释义 | pulse oximetrynoun1 : a method that utilizes spectrophotometry to measure the oxygen saturation of circulating arterial blood by means of a pulse oximeter Her oxygen saturation by pulse oximetry was 97% to 99%. Before pulse oximetry, the only option for measuring a patient's oxygen saturation was a painful invasive arterial blood gas test and it typically took a minimum of 20 to 30 minutes to obtain the result. Pulse oximetry is a spectrophotometry technology which determines the arterial oxygen saturation by the detection of pulsatile blood flow and is based on differing absorption spectra of oxyhemoglobin and deoxyhemoglobin which includes the red and near-infrared wavelengths of light. 2 plural pulse oximetries : a test using pulse oximetry … the patient would undergo pulse oximetries in their own homes conducted at rest, with activity, and overnight. |
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