Endocrinology Questions? Ask an Endicrinologist for Answers ASAP
Hello and thank you for the question.I am Dr. Sohaib, a practicing Internal Medicine Consultant with over 13 years of experience and I will do my best to help you today.Let me review your question for a minute and I will get back to you.
Honestly the evaluation for hypercalcemia should not stop here.
May I ask did you have any symptoms of high calcium (hypercalcemia) like frequent urination or thirst?
Thank you very much.
The most common cause for high calcium is either with high PTH (parathyroid hormone) levels (primary hyperparathyroidism) OR with normal PTH levels (Familial Hypocalciuric Hypercalcemia).
If the PTH is low, then it means that high calcium levels in blood are not PTH mediated, rather they are caused by other diseases like cancer or vitamin D intoxication.
In your case it appears you have familial Hypocalciuric Hypercalcemia (FHH) but for that urine testing will also be needed.
Also, to rule out other causes vitamin D levels, and if indicated PTHrP levels should be done. PTHrp is a PTH like chemical released from cancer cells and causes high calcium levels.
In the absence of weight loss, and the fact that PTH levels were normal, I don't think your high calcium is related to anything serious like a cancer, rather it appears to be benign in etiology.
Your PCP/GP can do the initial testing (you can discuss with him these details) and if needed he can refer you to an Endocrinologist for further evaluation.
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