This is why Clara has so many damn pills...
Q6: Why do thyroid cancer survivors who have lost
parathyroid function take large doses of calcium and
Vitamin D?
A: The parathyroid glands secrete PTH, a substance that
helps maintain the correct balance of calcium and phosphorus
in the body. PTH regulates the level of calcium
in the blood, the release of calcium from bone, absorption
of calcium in the intestine, and excretion of calcium in
the urine. When the level of calcium in the blood falls
too low, the parathyroid glands secrete just enough PTH
to restore the blood calcium level.
Patients that have lost parathyroid function (such as
patients who underwent Total Thyroidectomy and did
not get a successful Parathyroid Re-implantation), they
have no regulatory process to correct calcium deficits and
develop chronic low calcium levels, therefore, require
large dose of calcium and vitamin D supplementation.
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