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