What is a common symptom of hyponatremia?

Hyponatremia, which is a condition characterized by low sodium levels in the blood, often presents with neurological symptoms due to the effect of this electrolyte imbalance on the brain. Headache and confusion are classic manifestations of this condition. The low sodium levels can lead to cellular swelling in the brain, resulting in a range of symptoms such as headache, confusion, disorientation, seizures, or even coma in more severe cases.

Other symptoms of hyponatremia may include nausea, vomiting, muscle cramps, and fatigue, but the most prominent symptoms, particularly as they relate to mental status changes, are headache and confusion. This reflects the need for proper sodium balance to maintain normal neuronal function and hydration.