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The Pulse Oximeter

The Pulse Oximeter

Durée : 23:29
Welcome. This episode covers the pulse oximeter from how it functions, to what the readings mean and some troubleshooting tips. Without understanding ventilation, hypoxemia and hypoxia the data acquired by the pulse ox will not be useful to you. I recommend that you listen to episode 15 on this topic.
In animals the pulse ox is typically placed on a non-pigmented portion of skin such as the lip or tongue. Other locations include a skin fold, a toe or the tail. Placement is limited by the width of the clip you use, it is best to have the 2 clips of the unit be parallel for best functioning.
Always check your equipment prior to use and keep it clean!
I am linking again to the article on pulse oximetery in exotic animals as it has a good version of the oxygen-hemoglobin dissociation cure that visually represents what happens when the SpO2 is below 95%.
Remember the pulse ox is a proxy measurement of the amount of oxygen in the arterial circulation that can be transported to the cells. The gold standard measurement to measure oxygen in the blood is a blood gas analysis.
SpO2%=pulse oximeter reading of the percentage of hemoglobin saturated with oxygen
PaO2 mm Hg=the partial pressure of oxygen in the arteries
SpO2% 98-100 = PaO2 mm Hg 100 (animal breathing room air or under anesthesia with 100% oxygen)
SpO2% 95 = PaO2 80 (hypoxemia, low oxygen in blood)
SpO2% 90 = PaO2 60 (hypoxia, low oxygen to cells)
SpO2% 75 = PaO2 40 (death)
Thank you.
Id. d’épisode : 1000604752170
GUID : 7948149e-6b2d-470d-aad7-ef6b609f0ac3
Date de publication : 18/3/2023 à 15:00:00

Description

This podcast is my take on topics in veterinary medicine relating primarily to dogs and cats. My mission is to educate and inform, for the general public, veterinarians and veterinary nurses. All are welcome. If you are interested in science, animals and veterinary medicine this podcast a try!
Contact me with questions/comments at: askdrmatt@proton.me

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