What are the fundamental pathophysiologic events that explain PPHN?
1) Vascular spasm
2) Hypoxemia
3) Increased muscle wall thickness
4) Decreased cross-sectional area

Question

Quizplus · Accepted Answer

PPHN (Persistent Pulmonary Hypertension of the Newborn) involves vascular spasm, increased muscle wall thickness, and decreased cross-sectional area of the pulmonary vasculature, which contribute to the high pulmonary vascular resistance characteristic of this condition.

What Are the Fundamental Pathophysiologic Events That Explain PPHN