The correct answer here is the left-to-right ventricular shunt, or answer C. This is because this particular kind of shut allows the blood to flow backwards in the heart.
The heart is an incredible organ because it keeps the blood flowing in one direct route through the heart. The blood has to follow the set route. If it doesn’t, a clot could form because of blood standing still.
When blood flows back into the pulmonary system instead of going out to deliver the oxygen rich blood, the pulmonary blood flow is greater than any other kind of blood flow in the body. This is quite the intriguing situation, but it needs to be fixed because the blood is not delivering oxygen properly.
Left-to-right ventricular shunt-in a left-to-right ventricular shunt, a defect in the ventricular septum
allows blood to flow from the left ventricle to the right ventricle instead of being ejected into the
aorta. the shunted fraction of the left ventricular output is therefore added to the output of the
right ventricle, making pulmonary blood flow (the cardiac output of the right ventricle) higher
than systemic blood flow (the cardiac output of the left ventricle). in normal adults, the outputs
of both ventricles are equal in the steady state. in the fetus, pulmonary blood flow is near zero.
right ventricular failure results in decreased pulmonary blood flow. administration of a positive
inotropic agent should have the same effect on contractility and cardiac output in both ventricles.
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