Tests and diagnosis

By Mayo Clinic Staff

Because hypercalcemia may cause few, if any, signs or symptoms, you may not know you have the disorder until routine blood tests show a high level of blood calcium. Blood tests also can reveal whether your parathyroid hormone level is high, indicating that you have hyperparathyroidism. If your parathyroid hormone level is suppressed, your doctor will order other tests to determine the underlying cause of your hypercalcemia. These tests may include:

  • Chest X-ray
  • Computerized tomography (CT) scan
  • Magnetic resonance imaging (MRI) scan
  • Mammogram

These tests may help determine whether you have lung cancer, breast cancer, other malignancies, or granulomatous diseases of the lung, such as sarcoidosis.

May. 26, 2011