Which medication may be lifesaving for a child who is seizing or comatose from hyponatremia?

In cases of seizures or coma due to hyponatremia, intravenous hypertonic saline (3% sodium chloride) can be a lifesaving treatment. It helps rapidly increase serum sodium levels, mitigating the risks associated with severe hyponatremia. However, it must be administered cautiously to avoid rapid correction, which can lead to osmotic demyelination syndrome. Always consult medical professionals for appropriate dosing and monitoring.