Elevated calcitonin levels are likely due to high blood calcium levels.
When an individual has high levels of calcitonin during blood testing, it is most likely due to high blood calcium levels. Calcitonin is released by the thyroid when blood calcium concentrations are sensed to prevent blood calcium levels from getting too high by increasing calcium excretion in the urine, preventing further absorption of calcium in the gut, and directly inhibiting bone resorption.
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