Calcium, Ionized, Serum Test

This test is used to evaluate nonbound calcium, calcium metabolism, physiologically active calcium fraction, hyperparathyroidism, ectopic hyperparathyroidism. This test is occasionally useful when hypercalcemia coexists with abnormal protein state such as myeloma. Also useful in assessing active calcium fraction in hypoproteinemia and acidosis when calcium is low.

Note: This serum calcium test is not the best test for osteoporosis (see Osteoporosis Test ).

A significant deviation from the normal range may require further evaluation by your physician.

Private MD Lab Services offers the following test for serum ionized calcium: