A new formula for correction of total calcium level into ionized serum calcium values in very elderly hospitalized patients

Archives of Gerontology and Geriatrics

Volumn 45, Issue 2, 2007, Pages 151-157

  Pfitzenmeyer, Pierre ^a   Martin, Isabelle ^a   d'Athis, Philippe ^a   Grumbach, Yolande ^b   Delmestre, Marie Claude ^c   Blondé Cynober, Françoise ^d   Derycke, Béatrice ^d   Brondel, Laurent ^e  

^a UNIVERSITÉ DE BOURGOGNE   (France)

^b AMIENS UNIVERSITY HOSPITAL   (France)

^c Hôpital Joffre ^*  (France)

^d Hopital Joffre   (France)

^e CENTRE DES SCIENCES DU GOÛT ET DE L ALIMENTATION   (France)

Author keywords

Ionized calcium; Serum calcium in elderly

Indexed keywords

CALCIUM ION;

AGED; ALBUMIN BLOOD LEVEL; ARTICLE; CALCIUM BLOOD LEVEL; CLINICAL PRACTICE; CONTROLLED STUDY; DIAGNOSTIC ERROR; DIET THERAPY; GERIATRIC PATIENT; HUMAN; HYPOCALCEMIA; MAJOR CLINICAL STUDY; MALNUTRITION; MATHEMATICAL COMPUTING; PRACTICE GUIDELINE; PRIORITY JOURNAL; PROTEIN DEFICIENCY;

AGED, 80 AND OVER; CALCIUM; FALSE POSITIVE REACTIONS; FRANCE; HEMATOLOGIC TESTS; HOMEOSTASIS; HOSPITALS; HUMANS; HYPERCALCEMIA; HYPOCALCEMIA; INPATIENTS; LINEAR MODELS; PROTEIN-ENERGY MALNUTRITION; SERUM ALBUMIN; STATISTICS, NONPARAMETRIC;

EID: 34547137376     PISSN: 01674943     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.archger.2006.10.006     Document Type: Article

References (12)

1. Bowers G.N., Brassard C., and Sena S.F. Measurement of ionized calcium in serum with ion-selective electrodes: a mature technology that can meet the daily service needs. Clin. Chem. 32 (1986) 1437-1447
2. Bushinsky D.A., and Monk R.D. Calcium. Lancet 352 (1998) 306-311
3. Chigot J.P., Menegaux F., and Achrafi H. Should primary hyperparathyroidism be treated surgically in elderly patients older than 75 years?. Surgery 117 (1995) 397-401
4. Conceiaco S.C., Weightman D., Smith P.A., Luno J., Ward M.K., and Ker D.N.S. Serum ionised calcium concentration: measurement versus calculation. Br. Med. J. 1 (1978) 1103-1105
5. Ladenson J.H. Clinical utility of ionized calcium. In: Moran R.F., and Galveston T.X. (Eds). The Ionized Calcium: Its Determination and Clinical Usefulness. Proceedings of an International Symposium (1986), Electrolyte Blood Gas Division of the American Association for Clinical Chemistry 5-11
6. NCCLS (National Commitee for Clinical Laboratory Standards), 1995. Ionized calcium determinations: precollection variables, specimen choice, collection, and handling; approved guideline. NCCLS, 15, 1-19.
7. Payne R.B., Little A.J., Williams R.B., and Milner J.R. Interpretation of serum calcium in patients with abnormal plasma proteins. Br. Med. J. 4 (1973) 643-646
8. Payne R.B., Rowland K.M., Phillips P.J., Duncan B., and M.Lc L. Current "corrected" calcium concept challenged. Br. Med. J. 4 (1975) 617-619
9. Silverberg G., Shane E., Jacobs T., Siris E., and Bilezikian J.A. A 10-year prospective study of primary hyperparathyroidism with or without surgery. N. Engl. J. Med. 341 (1999) 1249-1255
10. Sorva A., Elfving S., Pohja P., and Tilvis R.S. Assessment of calcaemic status in geriatric hospital patients: serum ionized calcium versus albumin-adjusted total calcium. Scand. J. Clin. Lab. Invest. 48 (1988) 489-494
11. Sorva A., Elfving S., Sievers G., and Tilvis R.S. Calcemic status of geriatric patients: a longitudinal study. Gerontology 38 (1992) 87-91
12. Watson J.B., Lee K., Klein R., Klein B.E.K., and Koch D.D. Epidemiological evidence for the disruption of ionized calcium homeostasis in the elderly. J. Clin. Epidemiol. 50 (1997) 845-849