Document Detail

Methodological aspects of examination of 24 hour urinary excretions in outpatients with recurrent urolithiasis.
MedLine Citation:
PMID:  6648379     Owner:  NLM     Status:  MEDLINE    
In 85 recurrent stone formers, 2 consecutive 24 h urinary excretions were subjected to chemical examination for calcium, uric acid, magnesium and creatinine. 23 patients had hypercalciuria (greater than 6 mmol/24 h), 22 hyperuricosuria (greater than 3.5 mmol/24 h) and 5 hypomagnesuria (less than 2.4 mmol/24 h). In 1/3 of the cases, the diagnosis would have been missed if based on only one of the two collections, rather than on the mean values from both. Calcium-restricted diet 3 days before and during the sampling is not recommended. Hydrochloric acid appeared to be useful as a preservative and to prevent calcium and magnesium precipitation. No significant seasonal variations were found. Heating of the urine sample before analysis of uric acid did not influence the result.
E Laerum; H Palmer
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Scandinavian journal of urology and nephrology     Volume:  17     ISSN:  0036-5599     ISO Abbreviation:  Scand. J. Urol. Nephrol.     Publication Date:  1983  
Date Detail:
Created Date:  1984-01-26     Completed Date:  1984-01-26     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0114501     Medline TA:  Scand J Urol Nephrol     Country:  SWEDEN    
Other Details:
Languages:  eng     Pagination:  321-4     Citation Subset:  IM    
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MeSH Terms
Calcium / urine
Magnesium / urine
Specimen Handling
Uric Acid / urine
Urinary Calculi / urine*
Reg. No./Substance:
69-93-2/Uric Acid; 7439-95-4/Magnesium; 7440-70-2/Calcium

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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