What physiologic effect does inhaled nitric oxide have on the lung?
a. Pulmonary vasoconstriction
b. Pulmonary vasodilation
c. Smooth muscle dilation
d. Improved mucociliary clearance
ANS: B
Inhaled nitric oxide is a selective pulmonary vasodilator used to treat newborns who require me-chanical ventilation for hypoxic respiratory failure.
Health Professions
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