Diagnosis of normocalcemic hyperparathyroidism by oral calcium loading test

2003 ◽  
Vol 26 (4) ◽  
pp. 327-332 ◽  
Author(s):  
Philippe Hagag ◽  
I. Revet-Zak ◽  
N. Hod ◽  
T. Horne ◽  
M. J. Rapoport ◽  
...  
1996 ◽  
Vol 10 (2) ◽  
pp. 175-179
Author(s):  
Yuan-Hao Chen ◽  
An-Jen Lee ◽  
Charng-Shing Lin ◽  
Chiung-Hui Chen ◽  
Russell W. Chesney ◽  
...  

1996 ◽  
Vol 10 (2) ◽  
pp. 175-179 ◽  
Author(s):  
Yuan-Hao Chen ◽  
An-Jen Lee ◽  
Charng-Shing Lin ◽  
Chiung-Hui Chen ◽  
Russell W. Chesney ◽  
...  

BMJ ◽  
1969 ◽  
Vol 1 (5642) ◽  
pp. 477-480 ◽  
Author(s):  
D. G. D. Barr ◽  
J. O. Forfar

BMJ ◽  
1969 ◽  
Vol 3 (5663) ◽  
pp. 150-152 ◽  
Author(s):  
D. G. D. Barr ◽  
J. O. Forfar

1983 ◽  
Vol 57 (1) ◽  
pp. 94-100 ◽  
Author(s):  
MARY F. WITT ◽  
NEIL H. WHITE ◽  
JULIO V. SANTIAGO ◽  
YOSHIKI SEINO ◽  
LOUIS V. AVIOLI

PEDIATRICS ◽  
1982 ◽  
Vol 69 (5) ◽  
pp. 594-597
Author(s):  
F. Bruder Stapleton ◽  
H. Norman Noe ◽  
Gerald Jerkins ◽  
Shane Roy

The ratio of urinary calcium (UCa)/urinary creatinine (UCr) concentrations (mg/mg) during calcium loading has been used to diagnose hypercalciuric states in adults. The UCa/UCr ratios have been examined before and after an oral dose of calcium in 48 healthy children following five days of abstinence from dietary milk products. No differences in UCa/UCr ratios were observed between sexes, races, or age groups. UCa/UCr ratio before the calcium dose was 0.09 ± 0.12 (mean ± 2 SD) and increased to 0.12 ± 0.15 in urine samples collected for four hours after the calcium load. A direct relationship between UCa/UCr ratio and urinary sodium (UNa)/UCr ratio was observed (r = .57, P < .01). In six children, calcium loading studies were repeated without prior restriction of dietary calcium. Dietary calcium intake before the calcium loading had little effect upon UCa/UCr ratio before the calcium dose in these six children (0.068 vs 0.08); however, UCa/UCr values after the calcium load were significantly lower (0.08 vs 0.15) when no dietary calcium restriction preceded the calcium-loading study. These data may allow characterization of renal hypercalciuria and gastrointestinal hyperabsorption of calcium in children with urolithiasis.


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