Test Detail

Sodium, Urine 24H

A 24-hour urine sodium test measures the total amount of sodium you excrete in a day, which helps evaluate kidney function, assess dietary salt intake, and diagnose conditions like dehydration, kidney disease, or hormonal imbalances. The test involves collecting all urine over 24 hours in a large container provided by the lab. Normal ranges vary, but typically fall between 40 and 220 mmol/day, and results should be interpreted by a doctor in the context of your overall health and diet.