| Other causes of the central nervous system symptoms should be ruled out before deciding that they are caused by hypercalcemia alone. |
| The severity of the hypercalcemia determines the amount of treatment necessary. |
| In the presence of hypercalcemia, an elevated level of parathyroid hormone virtually establishes the diagnosis. |
| The determination of nephrogenic cAMP is also significant for the differential diagnosis of hypercalcemia. |
| Patients with more-severe hypercalcemia may have nausea, vomiting, weight loss, constipation, bone pain, and more-marked weakness and depression. |
| Most patients do not experience all of the symptoms of hypercalcemia, and some patients may not have any symptoms at all. |
