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Vitamin D deficiency

Vitamin D deficiency is tricky. It is frequently found in primary hyperparathyroidism, but in this case the deficiency is caused by the parathyroid condition, and should not be treated. But Vitamin D deficiency can itself produce a separate parathyroid condition called secondary hyperparathyroidism, which is treated with Vitamin D supplementation. This can get confusing, even for physicians.

Do I need to take Vitamin D? My latest calcium was 10.7 mg/dl and PTH 60. My doctor is very concerned about my Vitamin D of 15 ng/ml, and says that I should get my Vitamin D level up with supplementation before undergoing parathyroid surgery. Someone else said I should not take Vitamin D. Should I take it?
When you have high calcium, it does not make sense to take Vitamin D supplements, because this can raise your calcium further. One of the main roles for Vitamin D is to help your intestines absorb calcium, thus increasing your blood calcium level. If your blood calcium level is already high, you don't want to take Vitamin D and raise your calcium further.    Patients with primary hyperparathy...
Vitamin D Vitamin D deficiency
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My calcium is 10.5 mg/dl, my PTH is 53 pg/ml, my Vit D 25-hydroxy is 21 ng/ml. My doctor wants to start me on Vitamin D daily. Everything I’ve read says not to treat the low Vitamin D, if this could be primary hyperparathyroidism. Not sure what to do! How is taking Vit D going to lower my calcium level? I am 47 years old.
Let's summarize your results: Calcium at 10.5 mg/dl is elevated for your age. PTH at 53 pg/ml is not suppressed, which is inappropriate for the elevated calcium level. Vit D 25-hydroxy at 21 ng/ml is on the lower side. These numbers strongly suggest primary hyperparathyroidism (pHPT). In the context of pHPT, taking Vitamin D supplements is not the recommended course of action. Why? Bec...
Hypercalcemia primary hyperparathyroidism Diagnosis Vitamin D Vitamin D deficiency
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