A few pulmonary physiology questions...

Hopefully someone can help a rising fellow with a few topics (some basic) that have come up and I haven't been able to get a good explanation for: - How exactly does a CHF exacerbation cause hypercapneic respiratory failure? Pulmonary edema seems to be mainly a VQ mismatch issue and not increased dead space? - How exactly does ARDS cause increased dead space? Again, it seems like blood is still flowing through the pulmonary vasculature and it's more of shunt physiology developing with... A few pulmonary physiology questions...
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: Pulmonary / Critical Care Medicine Source Type: forums