What is the normal concentration of sodium in mEq/L?

The normal concentration of sodium in the blood is widely accepted to be in the range of 135 to 145 mEq/L. Sodium is a crucial electrolyte that plays various roles in the body, including maintaining fluid balance, transmitting nerve impulses, and muscle contraction. Values below this range may indicate hyponatremia, while values above may indicate hypernatremia, both of which can lead to significant health issues.

This range is standard in clinical practice, and it ensures that healthcare professionals have a common benchmark for assessing a patient's sodium levels during evaluations and treatments. Understanding this range is critical for managing patients effectively, especially in critical care settings where electrolyte imbalances can lead to severe complications.