How It Works: Finger Pulse Oximeter


Posted April 19, 2019 by Santamedical9871

Pulse oximetry has revolutionized the ability to monitor oxygenation in a continuous, accurate, and non-invasive fashion. Despite its ubiquitous use

 
Pulse oximetry has revolutionized the ability to monitor oxygenation in a continuous, accurate, and non-invasive fashion. Despite its ubiquitous use, it is our impression and supported by studies that many providers do not know the basic principles behind its mechanism of function. This knowledge is important because it provides the conceptual basis of appreciating its limitations and recognizing when pulse oximeter readings may be erroneous. In this review, we discuss how pulse oximeters are able to distinguish oxygenated hemoglobin from deoxygenated hemoglobin and how they are able to recognize oxygen saturation only from the arterial compartment of blood. Based on these principles, we discuss the various conditions that can cause spurious readings and the mechanisms underlying them.

The pulse oximeter allows pilots to monitor the oxygen saturation of hemoglobin in their blood, an invaluable tool when climbing above 10,000 feet.
The use of a pulse oximeter allows pilots to monitor the oxygen saturation of hemoglobin in their blood. How a
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Categories Health , Home
Tags Pulse oximeter , finger pulse oximeter
Last Updated April 19, 2019