one hundred fourteen nondialyzed azotemic adult patients ( creatinine connentration 1.2 to 17.6 mg/dl ) , 78 stable renal transplant recipients ( creatinine less than 1.9 mg/dl ) , 50 patients with idiopathic nephrolithiasis , 36 patients with surgically proven primary hyperparathyroidism , and 62 normal volunteers were studied with simultaneous serum ionized calcium , total calcium , parathyroid hormone ( pth ) , phosphorus , and creatinine measurements .
C0022646
renal
C0392525
nephrolithiasis