what is blood shunting
The term shunting of blood: the brain changes the amount of blood flow going to certain places by changing the size of the arterioles.his blood (2%) is not exposed to lung air, so this blood flow is called shunt flow. Since it is deoxygenated blood and will meet up with oxygenated blood, it decreases the pressure or oxygen in the systemic areteries (pressure is reduced to 95 mmhg). 3 people found this useful. Mai89.