PaO2 to FiO2 Ratio - PF Ratio
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- Опубліковано 13 лип 2024
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The PF ratio is a useful and quick tool that we have at our disposal to quantify the degree of respiratory failure that our patient has. Having this easy measurement also allows us to trend our patients respiratory failure to determine if they are stable, improving, or deteriorating. It's a simple calculation of just dividing the PaO2 from an ABG by the FiO2 expressed as a decimal. We can also use this PF ratio to then see test how our patient would respond to differing levels of oxygen delivery.
NOTE: Its dissociation not disassociation curve 🤦🏻♂️
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0:00 Intro
1:10 Calculating
1:52 PaO2 vs SpO2
3:44 Value of PF Ratio
3:57 Examples
8:09 Wrap-up
⚠️⚠️ DISCLAIMER: Links included in this description are affiliate links. If you purchase a product or service with the links that I provide I may receive a small commission. There is no additional charge to you!
❗️❗️PLEASE NOTE: ICU Advantage medical videos, medical lectures, medical illustrations, and medical animations are for medical education and exam preparation purposes, and not intended to replace recommendations by your doctor or health care provider. The information is present here to give you a starting place to further look in to the proper treatments and recommendations for the care of your patient.
#ICUAdvantage #PFRatio #RespiratoryFailure
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Notes for this lesson (and all previous lessons) are availably only to UA-cam and Patreon members. Links to join both here ⬇
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This was super helpful! We see a lot of discrepancies with high SpO2 and low PaO2 in the ICU and many times families will take the high SpO2 as a good thing. This will definitely help me explain it better to patients families! Thank you!
Just break out the DO2 calculation and watch their eyes glaze over 😂 Glad you enjoyed the video!
Don’t you wish all professors were effective educators? A lot of people try to explain, but it is rare to get an exceptional educator.
Your page is pure gold, man. Thank you.
Thanks so much Kate!
i was just talking about the PF ratio to my preceptor during my ICU rotation and he was explaining this to me a bit. This helps me understand better for sure and I love that I will now be able to throw around the term oxyhemoglobin curve
Really informative. Very Clear and concise. Thank you!
The way you explain makes the process easier to understand. Thank you so much. This has improve the way I now trend my patients and not having to rely so heavily on the RT, especially when they are occupied in other departments.
You always teach me something new. I work in an Accident & Emergency (ER) department in the UK and it really helps me further my knowledge and work with our critical care nurses. I'd love to see a video on capnography and integrated pulmonary index, if you haven't released one already :)
I had someone close to me who died recently of sepsis. ARDS was ... bad. FIO2 was 0.75. My husband had to look at what this meant. I did the math with a theoretical 100 for the PAO2... My God. 27 and something on room air. Hurts my heart to think about. But it puts things into perspective. Feel like I'll never complain about my asthmatic airways again.
There was a lot going on, but this was the one number I had. Thank you for explaining...
very clear and very professional, which shows how a good doctor and a teacher you are.
Thanks for the videos man! I always cite you and your channel when I’m precepting new grads, new hires, and students.
Thanks so much for that! I really appreciate the help in spreading the word.
Im a resident right now and my attending always asks what the PF ratio of our patients are. I got the quick lesson that higher PF ratio is better but didnt understand it until now so thank you
Another great video, thank you!
This was fantastic!! Thank you!
This makes so much sense ! Great video
Very useful information for everyone dealing with respiratory failure patients.
Thanks for this amazing work.
straight to the point! thanks! 🙏
This was very clear and helpful. Thank you.
Glad to hear this! You're welcome
You're a living legend, man. ❤️
Haha you are too kind but thank you!
I share your channel for all my colleagues
Thank you so much
Thank you for presenting this topic absolutely clear.
Truly my pleasure!
very helpful. Thank you❤
Thank you
This video was really helpful
ohh great topic, most awaited 🤘🤘🤘
Thank you sir
First!!!!
Thank you, having my ICU exam tomorrow
Best of luck on your exam!
A great channel and a great teacher 👏👏👏👏👏👏👏
Super helpful! Thank you so much, this really helped me with the paper I'm doing. God bless you ❤
Glad it was helpful!
Very clear, thank you!
Awesome. You're welcome!
Loving the recent content from a hopeful future pulm crit doc !
Thank you for this very useful information! 👏🏼🔝
My pleasure!
Informative. Thanks
Thank you so much💓
You're welcome. Glad you liked it
It's too good. But please make a video for POCUS, AND ultrasound lungs with different signs related to pneumothorax, consolidation, effusion, etc. Thank you
Extraordinary video awesome.... lost these video for so long........ THANKYOU SO MUCH FOR YOUR EFFORTS😇😍😍😍👑👑👑👑
Thank you so much! This was extremely clear and straight to the point. I am not sure if anyone pointed out that you circled PAo2 of 40 instead of 42. Nevertheless... You should be our trainer at my hospital for the MICU. :)
amazing video, honestly! thank you
Appreciate that! Thank you.
Awesome video 👍🏻
Very helpful! Thank you!!!
Glad to hear it!
Thank you, this lesson was super helpful
Glad to hear it!
Pretty clear explanation thanks a lot!
Glad it was helpful!
Great explanation. Thank you.
Glad it was helpful!
Great video
Thank you!
Can you please make a video on important topics or advice for new graduate nurses in the ICU?
Good explanation 🎯
Thank you!
Very useful knowledgeable video
Happy to hear this!
cool. thy keep good work
جميل يا صديقي، شرح رايق جدًا😍
I loved this video! I was wondering if I could request a topic? Cardiac surgery/post-op essentials type stuff - I work in a CCU and not a CVICU so I don't really have much education on that topic, and think it would be super beneficial to know!
Amazeballs❤
Thanks alot for the digestible explanation of PF ratio calculation. I will refer my training resident to this lecture of yours. I would appreciate it if u include the FiO2 of those on oxygen supplementation via cannula or face mask.
The room air trick was freaking genius
Although I don’t fully see how dangerous it is to leave the patient at romm air for a sec
Thank you from Russian doctors!!!
Good
Thank you
I will show this to our pulmonologist who would rather have a pt on 69% SpO2 with 100% FiO2 on an IMC floor rather than transferring to ICU, despite showing clear distress and altered mental status. Great video!
Do you have any long sleeve icu advantage shirts?
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So when weaning a patient off a ventilator..we should also look at pf ratio along with the ABG?
Yes, and remember to look at their RSBI score too.
Hi my question is, same SpO2, what causes some patients have much lower PaO2? Does Ph affect it?
Yes! Temperature, 2,3-DPG and pH all effect it. Looks up shifts in the oxygen dissociation curve and it will explain it further.
How long would someone need to be sitting at a particular FiO2 before we can see it reflected in their blood gases? Minutes?
There's slight mistake at 5:48, pls review it. when PaO2 = 42% the SpO2 =77.sth, but it's been tallied with PaO2 40%. Thanks
Are these videos available in audio form like Apple podcasts?
Hey Doug, I have the audio of the lessons as one of the benefits of the Trauma Team level of support on Patreon.
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How do I access notes for these videos?
First off, thank you so much for your support!
To find the notes, you have to go to the "Community" tab for the main ICU Advantage UA-cam page. Look for the most recent post with the link to the Dropbox and the current password, which changes each month. I have different folders depending on the series, but it'll mention which folder to find them in.
Let me know if you have any questions!
Thanks so much but I have a question and I really truly want the answer..I'm in nursing school and can bridge to medical after I graduated from college? Can I bridge to be An Md?
Nurse here, can we earn CE credits through your website? Thank you!
WHERE TO ACCESS NOTES
If you go to the "Community" tab from the main ICU Advantage UA-cam page, just look for the most recent post with a link to the notes and the current password for the month. Let me know if you have any issues finding it and thanks so much for your support!
I realise that I'm fighting a loosing battle here and there's not much you can do to fight it ....because medics and maths... but it's not a P/F ratio, because it's not a ratio - it has dimensions which is why it needs correcting for units.... ah welll....
And we don’t start proning people until their PF is
Yeah theres growing evidence that we should look at proning earlier
@@ICUAdvantage earlier.. means.. in which level of PF is that?
thank you sir
Thank you so much
You're most welcome