What is the normal value range for sodium (Na+) in mEq/L?

The normal value range for sodium (Na+) in mEq/L is indeed between 135 and 145. Sodium is a crucial electrolyte in the body, playing a significant role in maintaining fluid balance, transmitting nerve impulses, and muscle function. When sodium levels fall below 135, it can lead to hyponatremia, which has various clinical implications including confusion, weakness, and seizures. Conversely, levels above 145 can indicate hypernatremia, which may cause symptoms such as thirst, restlessness, or more severe neurological problems.

Understanding that the typical reference range for sodium is tightly regulated is essential for assessing patient electrolyte status in clinical practice. Abnormal sodium levels can signal underlying health issues, making it important for healthcare professionals to be aware of this standard range when interpreting lab results.