A 50–year old man has a history of frequent episodes of renal colic with high calcium renal stones. The most useful diuretic in the treatment of recurrent calcium stones is :
Thiazides cause hypercalcemia by decreasing the renal excretion of Ca2+. These are useful in a patient having hypercalciuria.
In such a patient, thiazides decrease the excretion of Ca2+ in the kidney and thus reduces the chances of stone formation.
Furosemide
Spironolactone
Hydrochlorothiazide
Acetazolamide