An 8-week-old infant's well-baby check reveals a murmur, and an echocardiogram shows a large ventricular septal defect. If left untreated, what condition could develop?
a. Pulmonary hypertension
b. Cyanosis
c. Dysrhythmias
d. Valve damage
ANS: A
If the degree of shunting is significant and not corrected, the child is at risk for developing pul-monary hypertension. Cyanosis is not present at first if the shift is left to right. Dysrhythmias do not occur. The defect does not lead to valve damage.
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