The nurse is teaching a pregnant client about fetal circulation. Which is the correct sequence of blood flow that indicates the pregnant client understands the information presented?
1. Ductus arteriosus
2. Ductus venosus
3. Foramen ovale
3, 1, 2
Explanation:
1. The ductus arteriosus connects the pulmonary artery to the aorta and is the last structure that blood reaches.
2. The ductus venosus connects the umbilical vein to the inferior vena cava bypassing the liver. It is the first structure that blood reaches.
3. The foramen ovale connects the right atrium to the left ventricle and bypasses the lungs. It is the second structure that blood reaches.
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