Question

My calcium is always noted to be “high-normal” but doctors are not concerned. Could I have parathyroid disease?


Answer
Deva Boone
Answer authored by Deva Boone
Deva Boone, MD is the founder of the Southwest Parathyroid Center. As one of the most experienced parathyroid surgeons in the U.S., she has treated thousands of patients with parathyroid conditions.

I would need to know what the actual calcium levels were. Sometimes what is called “high-normal calcium” is actually too high. Adults over about age 40 will generally have calcium levels at or below 10.0 mg/dl (or 2.5 mmol/L). If it is persistently above that, then primary hyperparathyroidism is possible – we would need to also check a PTH (parathyroid hormone) level to confirm.   If your results are consistently in the high 9s – what I would call a true “high normal” then that is normal. It is very unlikely in this case that primary hyperparathyroidism is present.   You can always request your actual lab results from your physicians. They are your results, and I encourage everyone to keep their own copies of their results. If you have the results, look at the actual calcium level. It will usually be within a set of labs called “Basic Metabolic Panel” or “Comprehensive Metabolic Panel.”

Normal calcium Primary HPT Diagnosis