Scenario: A 12-week pregnant woman has her first ultrasound….
Scenario: A 12-week pregnant woman has her first ultrasound. The sonographer notes the presence of the fetal circulatory system, including the umbilical vein and arteries. The nurse is educating the patient about fetal development and circulatory changes at this stage. Question: Which statement is true regarding the fetal circulatory system by week 5 of pregnancy?
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