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Calcium-41 Chloride Aqueous Solution
Definition 1
An orally bioavailable aqueous solution containing the chloride salt of the radioisotope calcium-41 (41Ca) with phosphate-binding and radioisotopic activities. Upon administration of calcium-41 chloride aqueous solution, calcium-41 is preferentially taken up by osteoblasts, which generate mineralized osteoid containing calcium. Calcium-41 accumulation and turnover in bone can be measured with bone scintigraphy and urinary isotope excretion. (NCI Thesaurus)
Definition 2
A substance used to diagnose and monitor cancer that has spread to the bones. It is also used to study the turnover of bone tissue and to diagnose other conditions that affect the bones, such as osteoporosis. Calcium-41 (41Ca) is a form of calcium that gives off radiation. It is passed from the body in the urine. (NCI Dictionary)