What are the three fundamental pathophysiologic events that explain PPHN?
I.vascular spasm
II.hypoxemia
III.increased muscle wall thickness
IV.decreased cross-sectional area

Question

Quizplus · Accepted Answer

The three fundamental pathophysiologic events that explain Persistent Pulmonary Hypertension of the Newborn (PPHN) are vascular spasm, increased muscle wall thickness, and decreased cross-sectional area. These contribute to the high pulmonary vascular resistance seen in PPHN. Hypoxemia is a result, not a cause, of these pathophysiologic changes.

What Are the Three Fundamental Pathophysiologic Events That Explain PPHN