What is Pulse Oximetry?

A quick discussion about pulse oximetry. 📝 Free Quiz: COMING SOON

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0:00 Intro
0:20 What is pulse ox?
1:28 How it works
2:50 What it tells us
5:25 Limitations
6:51 Other readings
8:16 Wrap up

#ICUAdvantage #PulseOx #SpO2

[ICUAdvantage]

NOTES for this lesson (and all previous lessons) are availably only to YouTube and Patreon members. Links to join both here ⬇

[ShellsBells]

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.

[rnsteve]

Love these quick simple videos too. I passed my NCLEX-RN on Thursday and have been watching your videos for a few months through the end of school.

[brettduce]

SpO2 is used to determine hypoxemia not hypoxia. Hypoxia describes low oxygen in the tissues, hypoxemia describes low oxygen in the blood.

[iamasaint_]

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!

[luis]

This made it so simple to understand, thanks!!

[MikeDahlin]

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 Youtube! Extremely helpful description of what those numbers mean. The good news is, I'm in good health! Thanks so much for your recording!!!

[markdefensor]

nice video, very informative! I do appreciate the creator's effort to help

[roland.j.ruttledge]

Nice ☺️ my carry - pulse ox (with pi), glucometer, and thermometer are invaluable. Great video as ever, Roland UK

[xyanicsheith]

Am doing a project about pulse oximetry and this has really helped me alot.. thank you

[SatumainenOlento]

What does the PI% reading mean? Could you do a video as it is hard to find information about it.

[gretchenvankeuren]

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!

[Heleous]

Is it possible to discern any cardiomyopathies via pleth? Or is it only good for heartrate? Love these vids man..keep it going!

[SadBooPac]

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 ?

[paymenomind]

Will you or have you done a video on the oxygen dissociation insanity?

[laurashapka]

I also call it a "sticky finger probe". I get made fun of a lot at work for it! I'm glad I'm not the only one

[otto]

Pulse oximetry is a Quantitative value for Hypoxemia. Not hypoxia. Bonus points :)

[mradnan]

Thank you so much very very much 🖤 explain English mein kya apne

[paymenomind]

Pleth refers to plethora which is Greek for an excess of blood.

[karlyuteriz]

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?