SODIUM

Overview

A serum sodium test measures the level of sodium in the blood, an essential electrolyte for nerve function, muscle contraction, and fluid balance. Abnormal sodium levels may indicate dehydration, kidney disease, adrenal gland disorders, or issues with fluid regulation. This test is useful in assessing electrolyte balance and diagnosing conditions related to sodium imbalance, such as hyponatremia or hypernatremia.