Understanding PaO2 FiO2 Ratio: Not all PaO2's are the same!
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- เผยแพร่เมื่อ 11 เม.ย. 2020
- Did you know that you can have a normal PaO2 and still be in severe respiratory failure? You can -- and this video will help you understand what the PaO2 and FiO2 represent and how this ratio can identify mild, moderate, or severe oxygenation impairment.
Oh wow you have just the right voice and delivery of a great instructors/professor/teacher well done:)...kept me listening
Thank you so much! I just graduated as a doctor and no-one has ever taken time to explain this to me properly and i really struggled finding resources on it! Super helpful thank you!
Finally someone "actually" explained these PaO2 and FiO2 .
Tnx Doctor 🙏🙏🙏
PaO2 is the O2 partial pressure in the arterial blood, PAO2 (capital "A") is the partial pressure of O2 in the alveoli. I noticed you used the wrong one in the video and they are not equivalent (cf.the Aa gradient). Be careful it can get very confusing if you start switching them up!
well done Max ,,, I’ve noticed that as well
PAO2 is Alveolar oxygen, PaO2 is arterial Oxygen. There is formula for that gradient: A-a.
I am not a nurse, still i am benefiting from this beautiful video.
Thank you. ☺
Thank you so much for an explanation clear enough for a lay person!
This video is incredible. Thank you!
This. Was. Amazing. Thank you 🙏🏻
This is really great thank you!
Thank you so much! Great video
Best video on Pa02
you are great teacher. thank you
thank you very much, that was really helpful
thanks a lot ,,, you’ve made so clear ,,, salute
I wish I had your ad a professor when I was in nursing school Tx!!
Thank you !!!!
Big Thanks.
Thanks 🎉🎉🎉
"This is an alveoli." Actually, it's an alveolus (singular) :-) Otherwise, a much needed clarification for what is often poorly understood. What is needed is to integrate the amount (volume) of oxygen transport capacity, i.e. hemoglobin. An anemic/hemorrhagic patient will have the same PaO2 and SaO2 readings, but have a total reduction of oxygen volume. For example an SaO2 of .98 x 1.34 (coeff) x 15Hb = 19.7 mL O2/dL The same SaO2 of .98 x 1.34 x 7Hb = 9.2 mL O2/dL. Despite an unchanged PaO2 and SaO2, the oxygen volume is 50% less.
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