PHOSPHATE EXCRETION AND PARATHYROID FUNCTION IN THYROTOXICOSIS

Abstract

SUMMARY Certain aspects of calcium and phosphorus metabolism have been studied in thirty-six patients with thyrotoxicosis. The plasma calcium and inorganic phosphorus concentrations were not significantly different from normal. The basal phosphate excretion index was low (− 0·08 ± 0·01) and there was an impaired response to high phosphate feeding. These findings suggest that parathyroid function is reduced in thyrotoxicosis.