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Human Body & Health

Which failure increases risk of osmotic demyelination following rapid hyponatremia correction?

A)Increased aquaporin channel expression
B)Decreased blood-brain barrier porosity
C)Reduced cerebral blood flow
D)Enhanced neuronal glucose metabolism

💡 Explanation

Increased aquaporin channel expression accelerates water influx into brain cells during correction of hyponatremia with osmosis; therefore, astrocytes swell excessively, leading to demyelination because of cellular damage, rather than protection from ionic changes.

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