Pulmonary hypeension in COPD is due to all, Except:
Answer is D (Bronchoconstriction) Bronchoconstriction is not a cause for Pulmonary Hypeension Pulmonary Hypeension in COPD has been attributed to multiple factors including: Hypoxia Pulmonary vasoconstriction (secondary to hyoxia) Acidemia Hypercapnia Mechanical effect of high lung volume on pulmonary vessels Loss of small vessels in vascular bed Regions of emphysematous lung destruction
Hypoxia
Pulmonary vasoconstriction
High lung volume
Bronchoconstriction