Supplemental Oxygen induced Hypercapnia Question

Did some research regarding a oxygen-induced hypercapnia in a patient with COPD exacerbation question in UW, and to quote Med-Bullets, 100% supplemental O2 would lead to: Increased dead space to tidal volume ratio worsens V/Q matching because of loss of hypoxic vasoconstriction most important contributing factor to worsening hypercapnia How is it that the loss of hypoxic vasoconstriction increases physiologic deadspace? Wouldn't the vasodilation... Supplemental Oxygen induced Hypercapnia Question
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums