Table 3.

Symptoms and findings in hyponatremia [Adrogué, 2005].

Mild to moderate

Headache, lethargy, slowness, poor concentration, depressed mood, lack of attention, impaired memory, nausea, restlessness, instability of gait and falls, muscle cramps, tremor

Advanced

Confusion, disorientation, somnolence, vomiting, hallucinations, acute psychosis, limb weakness, dysarthria

Grave

Seizures, hemiplegia, severe somnolence, respiratory insufficiency, coma, death