Correlation of 24-Hour Urine Sodium, Potassium and Calcium Measurements with Spot Urine
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Pinar Sonat Kara 1 * , Reha Erkoc 2, Yasemin Usul Soyoral 3, Huseyin Begenik 3, Mehmet Naci Aldemir 3
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1 Bingol State Hospital, Department of Internal Medicine, Bingol, Turkey
2 Bezmi Alem Vakif University, Faculty of Medicine, Department of Nephrology, Istanbul, Turkey
3 Yuzuncu Yil University, Faculty of Medicine, Van
* Corresponding Author

Abstract

In this study, we analyzed the correlation of sodium(Na), potassium(K) and calcium(Ca) amounts with spot urine(SU) and 24-hour urine(24-HU) collected as 8-hour portions. 21 hypertensive patients and 21 normotensive individuals were enrolled in the study. Na, K and Ca were studied in three sequential 8-hour urine samples and with the sum of three, 24-HU samples of the cases. Sodium/creatinine, potassium/creatinine, and calcium/creatinine were studied in fasting SU and serum Na, K and creatinine were studied. A significant correlation was found between the SU sodium/creatinine ratio and the Na amount in each 8-hour urine collections, and the Na amount in the 24-hour urine in hypertensive patients, the control group, and when all patients were evaluated together. When all group were evaluated together for Ca, a significant correlation was determined between the SU calcium/creatinine ratio and the Ca amount in all three 8-hour urine collections. The Na amount in the 24-HU may be estimated both with the SU Na/creatinine ratio and the 8-hour urine collection; SU does not have clinical significance for potassium. However, it may be estimated with 8-hour urine collections; SU may help roughly for calcium, and the collected urine gives higher correlation coefficients.

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Article Type: Original Article

https://doi.org/10.29333/ejgm/82362

EUR J GEN MED, 2013 - Volume 10 Issue 1, pp. 20-25

Publication date: 09 Jan 2013

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