What is the role of parathyroid hormone (PTH) testing in the diagnosis of hypocalcemia?

Updated: Aug 08, 2019
  • Author: Manish Suneja, MD, FASN, FACP; Chief Editor: Vecihi Batuman, MD, FASN  more...
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The parathyroid hormone level should be checked as early as possible. This test is an antibody-mediated radioimmunoassay. Low-to-normal PTH levels occur in patients with hereditary or acquired hypoparathyroidism and in patients with severe hypomagnesemia.

Patients with ineffective PTH have elevated PTH levels. The PTH elevation is a result of hypocalcemia.

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