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Free calcium level

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Free calcium level

(Science: biochemistry) The ionised calcium represents the calcium (Ca__) that is the metabolically active calcium. Normal values for ionised calcium in the bloodstream should be 4.4 to 5.3 mg/dl for adults and 4.4 to 6.0 mg/dl for children. Elevations may be seen in hyperparathyroidism, metastatic bone tumour, milk-alkali syndrome, multiple myeloma, pagets disease, sarcoidosis, PTH-secreting tumours (paraneoplastic syndrome) and vitamin d intoxication. Lower than normal values may be seen in hypoparathyroidism, malabsorption, osteomalacia, pancreatitis, renal failure, rickets and vitamin d deficiency.