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Normal range: 1.08-1.31 mmol/L

Comment: Ionized calcium reflects the physiological active function of total calcium. Increased in primary hyperparathyrodism, excess intake of vitamin D ectopic PTH-producing tumors. Elevation maybe seen even when total Ca is normal.Decreased in hypoparathyrodism, vitamin D deficiency and magnesium deficiency

Sample: Heparin, vacationer, send immediately