A 26 hour old infant is showing signs of cyanosis, metabolic acidosis and is entering into respiratory distress. A clinical cardiac assessment is started by the neonatologist and there is indication that there is filling in the right ventricular. In addition to this there is a very distinct second heart sound detected. It is suspected that the diagnosis is hypoplastic left heart syndrome (HLHS). The circulation in the infant diagnosed with HLHS differs in what way?
A)There is no difference
B)There is a lower PO2 to the lungs
C)There is a larger quantity of flow across the ductus arteriosis
D)The weight of the brain in the infant is often heavier than normal

Question

Quizplus · Accepted Answer

The circulation in the infant diagnosed with HLHS differs in that there is a larger quantity of flow across the ductus arteriosis. Because of this the level of PO2 is increased in infants with HLHS.

A 26 Hour Old Infant Is Showing Signs of Cyanosis