title: [Dosage of ionized calcium in osteo-articular pathology].
abstract: The dosage of calcium ionized serum using a selective electrode, was performed in a series of controls and patients with osteo-articular diseases. Normal values were 43 mg/l between 20 and 50 years of age, and 41 mg/l after 60 years. The level of ionized calcium, when given as a percentage of total blood calcium, did not decrease with age (normal value : 44%). It was increased in hyper-parathyroidism, rhumatoid polyarthritis and lytic bone metastasis. It did not vary in Paget's disease, osteoporosis, osteomalacia, condensing metastasis, Kahler's disease and spasmophilia. The ionized calcium in definitely diminished in hypoparathyroidism.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000378:metabolism; D001847:Bone Diseases / Q000378:metabolism*; D001859:Bone Neoplasms / Q000378:metabolism; D002118:Calcium / Q000097:blood*; D002648:Child; D002675:Child, Preschool; D004566:Electrodes; D005260:Female; D006801:Humans; D006961:Hyperparathyroidism / Q000378:metabolism; D007223:Infant; D007231:Infant, Newborn; D007592:Joint Diseases / Q000378:metabolism*; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis; D010001:Osteitis Deformans / Q000378:metabolism; D010018:Osteomalacia / Q000378:metabolism; D010024:Osteoporosis / Q000378:metabolism
chemical_list: D002118:Calcium
vernacular_title: Dosage du calcium ionisé en pathologie ostéo-articulaire.