From the Department of Urology, Shahid Rahnemoon Hospital, Shahid sadoughy University of Medical Sciences, Yazd, I.R. Iran.
Abstract: (4331 Views)
A study was designed to evaluate the normal value of 24 hr urinary calcium
levels in the city of Yazd. The average urinary excretion of calcium in a sample of
329 persons randomly selected was 232 mg/day, while patients with a history of
recurrent urolithiasis excreted 20X mg/day. There is evidence which shows that
more important factors than the amount of urinary calcium exist which influence
stone formation. On the other hand the urinary excretion of calcium was related to
blood pressure. These observations showed that measuring the amount of urinary
calcium excretion in patients with urolithiasis provided little or no helpful
information for the evaluation of these patients. Nevertheless, this test may be
valuable in other diseases such as hypertension.