Sodium
What it measures
Sodium is an electrolyte that helps regulate the amount of water in and around your cells.
Often reported in mmol/L. Reference ranges differ between laboratories, ages and sexes, so always compare with the range printed on your own report.
Why it matters
Sodium levels are sensitive to hydration, diet, and some medications, so an out-of-range result is usually looked at alongside those factors.
Questions worth asking
- Could recent fluid intake or medications explain this result?
- Should other electrolytes be checked at the same time?
- Is a repeat test recommended?
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Educational information only. Not a diagnosis, not treatment advice, and not a substitute for a licensed healthcare professional.