A 2-week-old infant who presents with poor feeding, fatigue, dyspnea, and a murmur is diagnosed with a patent ductus arteriosus (PDA). What does this condition result in?
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