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!

I am not a nurse, still i am benefiting from this beautiful video. Thank you. ☺

Best video on Pa02

Thank you so much for an explanation clear enough for a lay person!

Thank you so much! Great video

I wish I had your ad a professor when I was in nursing school Tx!!

thanks a lot ,,, you’ve made so clear ,,, salute

you are great teacher. thank you

This video is incredible. Thank you!

Thanks 🎉🎉🎉

This. Was. Amazing. Thank you 🙏🏻

This is really great thank you!

"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.

thank you very much, that was really helpful

Big Thanks.

Thank you !!!!

💐