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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]
Pulse oximetry is a noninvasive, painless test that measures the oxygen saturation level of your blood. Here’s how it works and what the readings mean.
Pulse oximetry is a method used to estimate the percentage of oxygen bound to hemoglobin in the blood. [10] This approximation to SaO 2 is designated SpO 2 (peripheral oxygen saturation). The pulse oximeter is a small device that clips to the body (typically a finger, an earlobe or an infant's foot) and displays its reading, or transfers it to ...
Pain is measured on a 0–10 pain scale based on subjective patient reporting and may be unreliable. [17] Some studies show that recording pain routinely may not change management. [18] [19] [20] Menstrual cycle [21] [22] Oxygen saturation (as measured by pulse oximetry) [23] [24] [25] Blood glucose level [26]
That is, they could be struggling for air despite normal pulse oximeter results. The potential for racial disparities in pulse oximetry was first revealed in a study published 34 years ago. "That ...
It can be measured with a dissolved oxygen probe such as an oxygen sensor or an optode in liquid media, usually water. [1] The standard unit of oxygen saturation is percent (%). Oxygen saturation can be measured regionally and noninvasively. Arterial oxygen saturation (SaO 2) is commonly measured using pulse oximetry.