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← ScienceWhich consequence results when excessive hydration during intense electrolyte loss?
A)Decrease in extracellular sodium ions✓
B)Rise of intracellular potassium ions
C)Increased neuromuscular action potential duration
D)Elevated osmotic pressure in brain cells
💡 Explanation
Hyponatremia occurs because the **ionic** concentration of sodium is reduced in extracellular fluid during dilution. This is **osmotic dilution**, therefore sodium concentration drops rather than remaining stable or increasing. Potassium or action potentials or pressures do not directly respond to water loading this way.
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