What is the normal sodium level range in mEq/L?

The normal sodium level range in mEq/L is considered to be between 135 and 145 mEq/L. Sodium is a crucial electrolyte in the body, essential for maintaining fluid balance, transmitting nerve impulses, and regulating muscle function. Levels below 135 mEq/L indicate hyponatremia, which can lead to fluid imbalance and neurological issues, while levels above 145 mEq/L indicate hypernatremia, which can also cause significant health problems. Therefore, understanding that the normal range for sodium is between 135 and 145 mEq/L is critical for recognizing electrolyte imbalances that can impact overall health and guide appropriate interventions.