Kaliuresis
Kaliuresis is the process of excreting potassium in the urine.
Thiazide diuretics are used to treat patients with heart failure. Their goal is to decrease the amount of salt (sodium) in the body by decreasing the amount that the kidney reabsorbs. This excess sodium in the kidneys that is destined for excretion (urination)can cause hyponatremia (low sodium)and can lead to kaliuresis by increasing sodium-potassium exchange (Harrison's Pricipals of Internal Medicine, 16th edition)