A calcium blood test measures the amount of calcium in your blood. If there is too much or too little calcium in the blood, it may be a sign of a wide range of medical conditions, such as bone disease, thyroid disease, parathyroid disorders, kidney disease, and other conditions
To check for diseases causing abnormalities in calcium level in blood like thyroid or parathyroid disorders, heart diseases, kidney diseases, neurological diseases, pancreatitis, bone and teeth diseases.
To monitor the progress of the condition and the efficacy of treatment after the kidney transplant, and in certain types of cancer.