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Sodium Normal Range

Category: Kidney Function TestsAlso known as: na+, serum sodium

What does it measure?

Sodium measures a key electrolyte that balances fluid levels in your body.

Reference Range

135 - 145
mEq/L

Note: Reference ranges can vary slightly between different laboratories. Always refer to the range printed on your specific lab report.

Critical Values

Values below 120 mEq/L or values above 160 mEq/L are considered critical and require immediate medical attention.

Frequently Asked Questions

What is a normal Sodium level?

A normal Sodium level for most adults is 135–145 mEq/L. This is a general reference range, and your specific laboratory may use slightly different values.

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