calcium, ionized…

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blood test, free calcium, ionized calcium, ionized calcium, test that measures the amount, free calcium, ca++, ca +2, blood, serum calcium, ionized, free calcium, metabolically-active portion of calcium, not bound to proteins, in the blood, blood is drawn, a vein, venipuncture, capillary, laboratory centrifuges the blood to separate the cells, serum, ionized calcium test, on serum, fast, at least 6 hours, medical provider, instruct to withhold drugs, affect the test, drugs, increase ionized calcium measurements include calcium salts, found in nutritional supplements, antacids, hydralazine, lithium, thiazide diuretics, thyroxine, serum calcium, measured to screen, monitor diseases, the bone, calcium regulation disorders, the parathyroid gland, kidneys, all cells, require calcium, numerous functions, calcium is especially important, in the structure of bones, teeth, calcium is vital, muscle contraction, heart function, transmission of nerve impulses, blood clotting, half, the calcium, in the serum is loosely associated, proteins, half, metabolically active portion, ionized calcium, usual methods, measuring calcium measure the total calcium level, bound + free, ionized calcium is measured, factors complicate the interpretation, the normal serum calcium test, levels of binding proteins, decreased, presence of abnormal amounts of albumin, immunoglobulins, serum calcium, decreased, the free calcium that is regulated hormonally by the body, in these circumstances, ionized calcium, reliable measure of calcium levels, children, 4.4, 6.0 mg/dl, adult, 4.4, 5.3 mg/dl, mg/dl = milligrams per deciliter, normal values, from laboratory to laboratory, greater-than-normal levels, hyperparathyroidism, metastatic bone tumor, milk-alkali syndrome, multiple myeloma, paget's disease, sarcoidosis, tumors producing a pth-like substance, vitamin d intoxication, lower-than-normal levels, hypoparathyroidism, malabsorption, osteomalacia, pancreatitis, renal failure, rickets, vitamin d deficiency, an excess ingestion of milk, vitamin d, a dietary supplement, increase calcium levels.