Alveolar Air Equation Examples

This is video 3 of 4 in a short series on the Alveolar Air Equation. In this video we use the examples of high altitude, with and without supplemental oxygen, as well as hypoventilation.
Ref:
1)John West Respiratory Physiology, The essentials
2)Egan's Fundamentals of Respiratory Care (9ed), Wilkins, Stoller and Kacmarek
3) Sibberson's Practical Math For Respiratory Care

[@IrfanShaikh-qf4wz]

too good sir just mazing cleared lot of concepts

[@Rene-uz3eb]

So only question I still have no answer for, is how does 2000ppm CO2 stuffy room air, which amounts to about 1.5mmHg, cause strong, measurable reduction in cognitive abilities, when this would barely move the gas exchange equation, ie should be easily be compensated for by increase in breathing?