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Physiology
During cardiac examination of a newborn infant, a murmur is detected, and the diagnosis of patent ductus aeriosus is made. Which of the following best describes the direction of blood flow through the patent ductus aeriosus in this infant?
From aoa to left pulmonary aery
From aoa to left pulmonary vein
From aoa to right pulmonary aery
From left pulmonary aery to aoa
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