566 FA 12 : V/Q MISMATCH

These videos are designed for medical students studying for the USMLE step 1. Feel free to comment and suggest what you would like to see in the future, and I will do my best to fulfill those requests.

[hesamhakim]

I think both ventilation and perfusion are more efficient in base. Usually in physiology classes they use the a long spring to simulate the process of distribution of air and blood flow in the lung. So, as the lower side of spring has more potential to be stretched out, the base part of the lung ventilate more efficiently.

[osamuyiasemota]

I am so thankful for all your videos! Thank you so much!!!

[LoveMedicine]

Absolutely....Thanks for the reminder though

[vwziful]

I have to correct a bit here.The ventilation and perfusion are both better at the base individually speaking but their ratio is better at the apex which means even though apex has less ventilation still it has even lesser blood flow which makes V/Q more than 8.0

[TheAlphamale]

there is not less CO2 in the apex because theres less blood flow but because of the mare inverse gas relationship between oxygen and carbondioxide. When CO2 goes up O2 will go down as well and vice versa.

[docforven]

I'm an MS3...having a lot of trouble with Electrolyte imbalances in my patients, as well as vents (im in ICU rotation right now). Will you be doing a video on theses topics?