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What is Pulmonary hypeension in COPD is due to all, Except: and explain in detail?
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