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Pulse oximetry measures the saturation of hemoglobin. That saturation isn’t necessarily oxygen. This is important to understand, especially for EMS workers. If someone was exposed to CO, the pulse ox can still read at 100%, because their hemoglobin is saturated… with CO (not O2). If your patient is an exposure patient and you throw a pulse ox on them and see 100% and assume they’re good, your patient may very well die.
But I came across a video where it says that oxyhemoglobin and de-oxyhemoglobin absorbs lights of different wave length and on the basis of it's absorption ratio Oxyme. Gives us the readings 🤔 now I'm confused about ur comment
Absolutely! Please continue these videos. I’m striving to become an ICU nurse and I listen and watch all of these videos closely. You’re showing and teaching us great information right here. Thank you!
I just bought an Innovo Finger Pulse Oximeter and after seeing the reading I thought to myself, what does this mean? So glad I found your RU-vid! Extremely helpful description of what those numbers mean. The good news is, I'm in good health! Thanks so much for your recording!!!
I've binged watched so many videos on your channel! I used many of these while studying for my CCRN in 2020, and am now using them again! Such good material, very concise and explained so easily. Thank you!
Hey Gretchen! This is so awesome to hear. Glad to know they were helpful for you in your CCRN studying and that you are still finding them helpful to this day. Thanks so much for taking the time to leave a comment! ❤️
Interesting question. I know theres some research going into using the pleth to analyze BP and SV, so potentially, but nothing that I've seen personally yet.
@@ICUAdvantage Thanks for the feedback...If possible, this would be revolutionary if pleth readings could be used to identify patterns associated w arrhythmias, MIs, etc..would save alot of lives w such a proactive screening approach..will have to delve more into this!
Thanks for the video. How do we explain the dicrotic notch (aka aortic valve closure) sometimes visible on the down curve since we do not measure pressure with the pulse oxymetry ?
I guess a dumb question is how/why is it normal to have a value of 99-100%? If our body is using oxygen - wouldn't our hemoglobin be less saturated as we use it, or, as we breathe (oxygenate?) are we replacing the oxygen we use almost immediately so that's why it doesn't really drop?
