The most common cause of secondary hyperparathyroidism is:

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Quizplus · Accepted Answer

Chronic renal failure is the most common cause of secondary hyperparathyroidism. In this condition, the kidneys are no longer able to activate vitamin D, leading to low levels of calcium in the blood. This triggers the release of parathyroid hormone, which stimulates the parathyroid glands to produce more hormone and causes an overgrowth of the glands. This results in secondary hyperparathyroidism.

The Most Common Cause of Secondary Hyperparathyroidism Is