1. A 1-day-old is noted
to be cyanotic. Physical examination reveals a grade 2-3/6 systolic murmur and
a single loud second heart sound. The chest radiograph reveals a normal-sized
heart and decreased pulmonary vascular markings. The electrocardiogram (ECG)
reveals left ventricular dominance. The next step in the management of this
neonate is to administer
A. sodium bicarbonate
B. morphine
C. prostaglandin E1
D. digoxin
E. positive-pressure
ventilation
2. The most likely
diagnosis in the patient described in Question 1 is
A. persistent pulmonary
hypertension
B. transposition of the
great arteries
C. truncus arteriosus
D. pulmonary atresia
E. total anomalous
venous return
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