What is the normal range for sodium levels in mEq/L?

The normal range for sodium levels in the blood is typically accepted as 135-145 mEq/L. Sodium is a critical electrolyte that helps maintain fluid balance, impacts blood pressure, and is essential for proper muscle and nerve function. Levels outside this range can indicate disorders such as hyponatremia (low sodium) or hypernatremia (high sodium), which can have serious health implications.

The values provided in the other options fall outside the established normal physiological range, thus confirming that the range of 135-145 mEq/L is indeed the correct standard. Understanding these values is essential for assessing and managing patient health effectively.