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Measuring oxygen saturation with pulse oximetry quizlet.
Pulse oximetry is a noninvasive method for monitoring a person s oxygen saturation though its reading of peripheral oxygen saturation spo 2 is not always identical to the more desirable reading of arterial oxygen saturation sao 2 from arterial blood gas analysis the two are correlated well enough that the safe convenient noninvasive inexpensive pulse oximetry method is valuable for.
Oxygen saturation should always be above 95 percent.
In medical shorthand you may hear it called a pao 2 when using a blood gas and an o 2 sat spo2 when using a pulse ox.
Calculate the percentage of your blood that is carrying oxygen.
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It also provides a reading of your heart rate pulse to make sure the oximeter is giving you a good reading count your pulse for one minute and compare the number you get to the pulse number on the oximeter.
Small beams of light pass through the blood in the finger measuring the amount of oxygen.
A clip like device called a probe is placed on a body part such as.
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Pulse oximetry is a test used to measure the oxygen level oxygen saturation of the blood.
If they are the same your are getting a good signal.
A finger plethysmograph uses a light emitting diode and a photoelectric cell to detect changes in finger volume.
Pulse oximeters combine the principles of oximetry and plethysmography to noninvasively measure oxygen saturation in arterial blood what does a finger plethysmograph detect.
During a pulse oximetry reading a small clamp like device is placed on a finger earlobe or toe.
A measurement of your blood oxygen is called your oxygen saturation level.
It is an easy painless measure of how well oxygen is being sent to parts of your body furthest from your heart such as the arms and legs.
Pulse oximetry is a simple cheap and noninvasive procedure used to measure the level of oxygen or oxygen saturation in the blood.
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