Definitions for pulse oximetry
pulse oxime·t·ry

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1. pulse oximetrynoun

   A non-invasive method allowing the monitoring of the oxygenation of a patient's hemoglobin, using a sensor placed on a thin part of the patient's anatomy, usually a fingertip or earlobe.

WikipediaRate this definition:0.0 / 0 votes

1. Pulse oximetry

   Pulse oximetry is a noninvasive method for monitoring a person's oxygen saturation. Though its reading of peripheral oxygen saturation (SpO2) is not always identical to the more desirable reading of arterial oxygen saturation (SaO2) from arterial blood gas analysis, the two are correlated well enough that the safe, convenient, noninvasive, inexpensive pulse oximetry method is valuable for measuring oxygen saturation in clinical use. In its most common (transmissive) application mode, a sensor device is placed on a thin part of the patient's body, usually a fingertip or earlobe, or in the case of an infant, across a foot. The device passes two wavelengths of light through the body part to a photodetector. It measures the changing absorbance at each of the wavelengths, allowing it to determine the absorbances due to the pulsing arterial blood alone, excluding venous blood, skin, bone, muscle, fat, and (in most cases) nail polish.Reflectance pulse oximetry is a less common alternative to transmissive pulse oximetry. This method does not require a thin section of the person's body and is therefore well suited to a universal application such as the feet, forehead, and chest, but it also has some limitations. Vasodilation and pooling of venous blood in the head due to compromised venous return to the heart can cause a combination of arterial and venous pulsations in the forehead region and lead to spurious SpO2 results. Such conditions occur while undergoing anesthesia with endotracheal intubation and mechanical ventilation or in patients in the Trendelenburg position.

WikidataRate this definition:0.0 / 0 votes

1. Pulse oximetry

   Pulse oximetry is a non-invasive method allowing the monitoring of the saturation of a patient's hemoglobin. A sensor is placed on a thin part of the patient's body, usually a fingertip or earlobe, or in the case of an infant, across a foot. Light of two wavelengths is passed through the patient to a photodetector. The changing absorbance at each of the wavelengths is measured, allowing determination of the absorbances due to the pulsing arterial blood alone, excluding venous blood, skin, bone, muscle, fat, and nail polish. With NIRS it is possible to measure both oxygenated and deoxygenated hemoglobin on a peripheral scale. Reflectance pulse oximetry may be used as an alternative to transmissive pulse oximetery described above. This method does not require a thin section of the patient's body and is therefore well suited to more universal application such as the feet, forehead and chest, but it also has some limitations. Vasodilation and pooling of venous blood in the head due to compromised venous return to the heart, as occurs with congenital cyanotic heart disease patients, or in patients in the Trendelenburg position, can cause a combination of arterial and venous pulsations in the forehead region and lead to spurious SpO2 results.

How to pronounce pulse oximetry?

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How to say pulse oximetry in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of pulse oximetry in Chaldean Numerology is: 9

2. Pythagorean Numerology

   The numerical value of pulse oximetry in Pythagorean Numerology is: 4

Examples of pulse oximetry in a Sentence

1. Tom Valley:

   As someone who has been involved in this work and has found something similar in a different diagnostic tool -- pulse oximetry -- unfortunately, I'm not surprised, we don't know whether these problems exist unless we look for them, and if we don't look for them, we're not going to identify these problems. If we don't identify these problems, we can't fix them, and so that's part of the issue. We don't know how far this goes. We don't know how deep this goes, this racism within healthcare.

2. Richard Levitan:

   I believe pulse oximetry is incredibly valuable if we were to use it in the window of time that the disease begins to gather strength, which is usually five to 10 days out from when someone is first infected, then the other thing is to measure inflammatory markers when we observe them in the hospital and use the variety of medicines at our disposal to address inflammation. It's time to get ahead of this virus instead of chasing it.

References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Pulse_Oximetry
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Pulse_Oximetry
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=pulse oximetry