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A comparative study of two methods of measurement of fractional calcium absorption: results in normal individuals and patients with various disturbances of calcium metabolism
Author(s) -
JUTTMANN J. R.,
RUIS A. M.,
HAGENOUWTAAL J. C. W.,
LOCKEFEER J. H. M.,
BIRKENHÄGER J. C.
Publication year - 1978
Publication title -
european journal of clinical investigation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.164
H-Index - 107
eISSN - 1365-2362
pISSN - 0014-2972
DOI - 10.1111/j.1365-2362.1978.tb00826.x
Subject(s) - absorption (acoustics) , calcium , calcium metabolism , dialysis , oral administration , isotopes of calcium , medicine , chemistry , gastroenterology , materials science , composite material
. Two methods of measurement of fractional calcium absorption have been compared in the same individuals. There is a significant correlation between fractional 47 Ca absorption as measured with a blood counting method and with an external counting method after intravenous and oral administration of 47 Ca ( P < 0.001). Two varieties of the external counting method, namely with intervals of 2 h and of 7 days between the i.v. and oral doses, have been compared. In a group of twenty‐one patients with chronic renal failure (not on haemodialysis), 47 Ca absorption as measured by external counting was significantly lower than in the control group ( P< 0.001). When put on a dialysis programme a group of six patients showed a significant increase of the fractional 47 Ca absorption ( P< 0.01).