. A urine potassium test helps evaluate the body's potassium balance and kidney function. Potassium is an essential electrolyte that plays a crucial role in nerve function, muscle contraction, and fluid balance.
. This test is commonly used to assess the cause of abnormal potassium levels in the blood, distinguish between renal and non-renal causes of potassium imbalances, and monitor conditions such as chronic kidney disease, adrenal disorders, or the effects of diuretic therapy.
. It is also useful in diagnosing hypokalemia (low potassium) or hyperkalemia (high potassium) by determining whether the kidneys are appropriately excreting or retaining potassium.