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## cardiac output and induction time

Can anyone please explain to me WHY an increased/decreased CO slows/speeds induction time!?
I just don't understand...naturally I would tend to think that a high CO would speed induction time (which I know is incorrect) due to the simple fact that you have increased uptake into the alveolar capillary.
My pharm instructor said that it was because the transit time of blood in a hyperdynamic state through the alveolar capillaries is so fast that it doen't allow as much gas to diffuse into the blood. This definition on the surface makes sense, however I have spent hours searching and I cannot find any definition that is even remotely close to this.
Is there any information out there that can explain gas flow dynamics in the body well?
Thanks