Prevention Maintaining an adequate intake of calcium may reduce risk. A biopsy of the parathyroid gland shows tumor or hyperplasia . A radioimmunoassay of parathyroid hormone that shows an increased level. Serum calcium is increased. Serum chloride may be increased.
Serum phosphorus is decreased.
Serum alkaline phosphatase may be increased. Bone X-ray shows bone reabsorption or fractures . Imaging of the kidneys or ureters shows calcification or obstruction. All Rights Reserved. All rights reserved.