Typical Reference Range135–145 mmol/l
Unitmmol/l
What This Value Measures
Sodium is a mineral (electrolyte) that co-regulates water balance and the function of nerves and muscles. The value reflects the balance of salt and water.
Elevated Value
An elevated value may indicate fluid deficiency or disturbed water regulation.
Low Value
A decreased value may be due to excess fluid, certain medications, or medical conditions.
Reference ranges are typical guide values for adults and vary depending on the laboratory, measurement method, age and sex — always compare with the range stated on your own report. A value outside the range does not automatically mean an illness, and a value within the range does not rule one out. The trend and overall picture are usually more informative than a single value. The doctor's assessment is always decisive.