Closure of the fetal circulatory adjustments occurs functionally in the following sequence:?
Correct Answer: Ductus venosus> Foramen ovale > Ductus aeriosus
Description: Functional closure of the fetal circulatory adjustements occurs in the following sequence: Ductus venosus > Foramen ovale > Ductus aeriosus. Fetal circulatory adjustment Functional closure Anatomical closure Ductus Venosus After removal of the placenta 7 days Foramen ovale At bih-after breathing is initiated Months to years Ductus aeriosus 10-15 hours 10-21 days Ref: Nelson textbook of pediatrics 21st edition Pgno: 2162
Category:
Pediatrics
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