Abstract
Disorders of calcium homeostasis are relatively frequent in nephrology. It is always necessary to distinguish whether they are manifestations of functional consequences associated with renal disease, or whether their cause is completely diffrent.
The primary focus will parellel the To determine the concentration of phosphorus, PTH and vitamin D metabolites will contribute to basic orientation in the disease, further to that it is necessary to know the concentration of albumin in serum and acid base balance.The two main cyuses of hypercalcemia are hyperparathyroidism and malignancies; however, we consider many other options in the differential diagnosis. The main causes of hypocalcemia include absolute or relative deficiency of vitamin D, parathormone deficiency and other less common causes.