The 24-hour Urine Potassium test measures the total amount of potassium excreted in urine over a 24-hour period. This test helps assess potassium metabolism and kidney function, providing insights into electrolyte balance and overall health. Abnormal potassium excretion can indicate conditions such as kidney disease, adrenal disorders, or issues related to dietary intake. It is commonly used to evaluate patients with hypertension, heart disease, or those on diuretic therapy.