What is the normal range for sodium levels in the body?

The normal range for sodium levels in the body is indeed between 135 and 145 mEq/L. Sodium is an essential electrolyte that plays a critical role in maintaining fluid balance, nerve function, and muscle contraction. Levels below 135 mEq/L can indicate hyponatremia, while levels above 145 mEq/L can suggest hypernatremia. Maintaining sodium within this range is vital for homeostasis and overall health. Understanding this normal range helps healthcare professionals monitor patients for potential electrolyte imbalances that could lead to serious complications.