Directions: Try the USMLE (Step 1) question(s) which are shown below, select one answer from the multiple choices, and then check your answer by clicking get answer button.
Question:
A neonate presents with tachycardia, tachypnea, diaphoresis, and poor feeding. On examination, a continuous murmur is auscultated. A patent ductus arteriosus is diagnosed. Which of the following describes the function of the ductus arteriosus during fetal life?
A. It differentiates into the mitral valve
B. It shunts deoxygenated blood from the aorta to the pulmonary artery
C. It shunts deoxygenated blood from the pulmonary artery to the aorta
D. It shunts oxygenated blood from the aorta to the pulmonary artery
E. It shunts oxygenated blood from the pulmonary artery to the aorta
