Hyponatremia can lead to which of the following manifestations?

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Multiple Choice

Hyponatremia can lead to which of the following manifestations?

Explanation:
Low serum sodium lowers extracellular osmolality, so water moves into brain cells, causing cerebral edema. The brain isn’t able to expand quickly, leading to neurologic changes such as confusion and altered mental status, and in more severe cases, seizures. This CNS impact is the hallmark of hyponatremia. The other scenarios describe issues more tied to lung fluid (hypoxemia, pulmonary edema) or separate electrolyte/acid-base problems (hyperkalemia and metabolic acidosis), which aren’t direct manifestations of hyponatremia.

Low serum sodium lowers extracellular osmolality, so water moves into brain cells, causing cerebral edema. The brain isn’t able to expand quickly, leading to neurologic changes such as confusion and altered mental status, and in more severe cases, seizures. This CNS impact is the hallmark of hyponatremia.

The other scenarios describe issues more tied to lung fluid (hypoxemia, pulmonary edema) or separate electrolyte/acid-base problems (hyperkalemia and metabolic acidosis), which aren’t direct manifestations of hyponatremia.

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