Fetal growth restriction (FGR) often results from placental
insufficiency, leading to hypoxia. In response, the fetus can redistribute
blood flow through a phenomenon known as brain sparing.

In a study measuring blood flow in fetuses with
varying degrees of growth restriction, which pattern of findings would best
demonstrate brain sparing and illustrate its physiological trade-offs?

Question

Fetal growth restriction (FGR) often results from placental
insufficiency, leading to hypoxia. In response, the fetus can redistribute
blood flow through a phenomenon known as brain sparing.

In a study measuring blood flow in fetuses with
varying degrees of growth restriction, which pattern of findings would best
demonstrate brain sparing and illustrate its physiological trade-offs?

Accepted Answer

Increased
blood flow to the brain and heart, reduced flow to kidneys, liver, and limbs, while
maintaining oxygen delivery to the brain but slower growth of peripheral
tissues

Answer

Increased
blood flow to peripheral organs at the expense of the brain, preserving body
mass but risking neurological injury

Answer

Blood
flow is modestly increased to the brain but also increased to peripheral
organs, resulting in less pronounced redistribution and only partial protection
of the brain

Answer

Uniformly
reduced blood flow to all organs, showing global adaptation to hypoxia without
preferential organ protection

Crowdly

Fetal growth restriction (FGR) often results from placental insufficiency, lead...

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