. A urine sodium test helps assess the body's sodium balance and kidney function. Sodium is a vital electrolyte that plays a key role in maintaining fluid balance, blood pressure regulation, and nerve and muscle function.
. This test is often used to determine the cause of electrolyte imbalances, dehydration, or fluid retention and to evaluate kidney function in conditions like acute kidney injury, chronic kidney disease, and adrenal gland disorders.
. It is also helpful in monitoring patients on diuretics, assessing sodium loss in urine, and distinguishing between kidney-related and non-kidney-related causes of sodium imbalances in the body.