A 2-week-old infant who presents with poor feeding, fatigue, dyspnea, and a murmur is diagnosed with a patent ductus arteriosus (PDA).This condition results in a(n):
A) decreased pulmonary blood flow.
B) right-to-left shunt.
C) left-to-right shunt.
D) increased systemic blood flow.

Question

Quizplus · Accepted Answer

A patent ductus arteriosus (PDA) results in a left-to-right shunt, where oxygenated blood from the aorta flows back into the pulmonary artery, increasing pulmonary blood flow.

A 2-Week-Old Infant Who Presents with Poor Feeding, Fatigue, Dyspnea