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Fetal-Neonatal Transition and Placental Circulation Quiz

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Fetal-Neonatal Transition and Placental Circulation Quiz

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Questions and Answers

What is the main treatment for erythroblastosis fetalis?

Administration of antibiotics

Blood transfusion

Injection of anti-D immunoglobulin (correct)

Placental removal

Which factor contributes to the increase in stroke volume during gestation?

Reduced contractility

Increased venous return (preload) (correct)

Decrease in ventricular size

Increased downstream resistance (afterload)

What is the primary mechanism that leads to a decrease in pulmonary vascular resistance at birth?

Discovery of vasodilators in blood

Increased oxygen content in blood (correct)

Decreased systemic arterial pressure

Introduction of vasoconstrictors

What happens to the flow direction in the ductus arteriosus after birth?

Reverses from left-to-right to right-to-left Signup and view all the answers

Which circulation has higher pressure and resistance in newborns?

Systemic circulation Signup and view all the answers

What leads to the closure of the ductus venosus?

Increased pulmonary blood flow Signup and view all the answers

Why is breathing onset before cord clamping beneficial?

To prevent sudden rise in blood pressure caused by cord clamping Signup and view all the answers

What physiological change occurs in the lung to reverse the pulmonary systemic pressure gradient at birth?

Decrease in lung volume due to aeration Signup and view all the answers

What causes shunts like ductus arteriosus to close shortly after birth?

High oxygen content in blood Signup and view all the answers

How does protecting the brain improve newborn transition?

Prevention of neurological damage and complications Signup and view all the answers