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Karra Karra
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6 years ago
The nurse caring for newborns with congenital heart defects knows that these defects occur when certain events do not take place after birth. Which of the following describes one of these events?
 
  A) The foramen ovale opens.
  B) The ductus arteriosus expands.
  C) The ductus venosus becomes a ligament.
  D) The lungs retract.
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JenahCallJenahCall
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6 years ago
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