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Journal of Pediatric Endocrinology and Metabolism

Editor-in-Chief: Kiess, Wieland

Editorial Board Member: Darendeliler, Feyza / Gustafsson, Jan / Luo, Feihong / Mericq, Veronica / Lanes M. D., Roberto / Battelino, Tadej / Buyukgebiz, Atilla / Cassorla, Fernando / Chrousos, George P. / Cutfield, Wayne / Fideleff, Hugo L. / Hershkovitz, Eli / LaFranchi, Stephen H. / Mohn, Angelika / Root, Allen W. / Rosenfeld, Ron G. / Wabitsch, Martin / Werther, George / Zadik, Zvi

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Water deprivation test in children with polyuria

1 / Sze Shun Man1

1Department of Paediatrics and Adolescent Medicine, Tuen Mun Hospital, Hong Kong, People’s Republic of China

Corresponding author: Lap Ming Wong, Department of Paediatrics and Adolescent Medicine, Tuen Mun Hospital, Tsing Chung Koon Road, Tuen Mun, New Territories, Hong Kong, People’s Republic of China, Phone: +852-24685111, Fax: +852-24569111

Citation Information: Journal of Pediatric Endocrinology and Metabolism. Volume 25, Issue 9-10, Pages 869–874, ISSN (Online) 2191-0251, ISSN (Print) 0334-018X, DOI: 10.1515/jpem-2012-0092, July 2012

Publication History

Received:
2012-03-26
Accepted:
2012-06-25
Published Online:
2012-07-27

Abstract

Polyuria is an uncommon clinical presentation in paediatric practice. When diabetes mellitus has been excluded by history taking and preliminary investigations and impaired renal concentrating ability is confirmed, water deprivation test (WDT) is necessary to differentiate among central diabetes insipidus (CDI), nephrogenic diabetes insipidus, or primary polydipsia. Traditionally, responsiveness to desmopressin injection is defined as urine osmolality >750 mOsm/kg. However, that level could not be reached in the review of our patients. We discuss how to arrive at the diagnosis of CDI in WDT. An approach to polyuria and WDT will also be discussed.

Keywords: central diabetes insipidus; nephrogenic diabetes insipidus; polyuria; water deprivation test

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