Which condition is more likely to occur due to water intoxication?

• A. Hypernatremia
• B. Hyponatremia
• C. Dehydration
• D. Kidney stones

Answer: (B)

Hyponatremia is the condition more likely to occur due to water intoxication because it involves a dilution of sodium in the blood. When excessive amounts of water are consumed in a short period, it can overwhelm the kidneys' ability to excrete the excess fluid. This leads to a lower concentration of sodium in the bloodstream, resulting in hyponatremia. Sodium levels drop because the increase in total body water dilutes the sodium, potentially causing symptoms such as headache, nausea, confusion, and in severe cases, seizures or coma.

In contrast, hypernatremia occurs when there is a high concentration of sodium in the blood, often due to dehydration or inadequate water intake, which is not the case with water intoxication. Dehydration leads to an insufficient amount of water retention and can cause elevated sodium levels, while kidney stones are typically associated with factors like low fluid intake or high levels of certain minerals in urine rather than excessive water consumption.