Which of the following types of hyperparathyroidism is the result of an overproduction of parathyroid hormone (PTH) in response to long-term decreased levels of serum calcium often associated with chronic renal disease?

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Secondary hyperparathyroidism is caused by long-term decreased levels of serum calcium, often associated with chronic renal disease. The overproduction of PTH is a compensatory response by the parathyroid glands to maintain calcium homeostasis in the body. Primary hyperparathyroidism, on the other hand, is caused by a benign tumor in one or more of the parathyroid glands, leading to excessive PTH secretion. Tertiary hyperparathyroidism is a rare condition that occurs after long-standing secondary hyperparathyroidism, where the parathyroid glands become autonomous and continue to secrete PTH even after calcium levels have been normalized. Familial hyperparathyroidism is a hereditary condition where there is an overproduction of PTH due to genetic mutations.

Which of the Following Types of Hyperparathyroidism Is the Result