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Unformatted text preview: Epidemiology This is most common in post-menopausal women Diagnosis Primary: The diagnosis of primary hyperparathyroidism is made by blood tests. Serum calcium levels are elevated. The serum chloride phosphate ratio is 33 or more in most patients with primary hyperparathyroidism. However, thiazide medications have been reported to causes ratios above 33. Urinary cAMP is occasionally measured; this is generally elevated. . Intact PTH levels are also elevated. Secondary: The PTH is elevated due to decreased levels of calcium or 1,25-dihydroxy-vitamin D3. It is usually seen in cases of chronic renal disease or defective calcium receptors on the surface of parathyroid glands....
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- Fall '10