Secondary Hyperparathyroidism

Close Up of Hand Holding Vitamin or Supplement

In secondary hyperparathyroidism, there is a physiologically appropriate increase in parathyroid hormone secretion in response to a decrease in extracellular calcium. The most common cause of secondary hyperparathyroidism is renal failure. Less common causes are long term lithium usage, vitamin D deficiency, gastrointestinal malabsorption syndromes (when the intestines do not absorb vitamins and minerals properly),…

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