Marked Changes That Occur in the Cardiopulmonary System at Birth

question 29

Multiple Choice

Marked changes that occur in the cardiopulmonary system at birth include which of the following?
Note: Credit will be given only if all correct choices and no incorrect choices are selected.

• A) Closure of the foramen ovale
• B) Closure of the ductus venosus
• C) Mean blood pressure of 31 to 61 m m H g in full-term resting newborns
• D) Increased systemic vascular resistance and decreased pulmonary vascular resistance
• E) Opening of the ductus arteriosus

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