Practice Rational Testing Investigating hyponatraemia BMJ 2011; 342 doi: https://doi.org/10.1136/bmj.d1118 (Published 07 March 2011) Cite this as: BMJ 2011;342:d1118 Article Related content Metrics Responses Peer review Related articles Correction Investigating hyponatraemia Published: 14 April 2011; BMJ 342 doi:10.1136/bmj.d2401 See more Patients who report night sweats BMJ May 17, 2023, 381 e073982; DOI: https://doi.org/10.1136/bmj-2022-073982 Screening and diagnosis of gestational diabetes BMJ May 02, 2023, 381 e071920; DOI: https://doi.org/10.1136/bmj-2022-071920 The role of faecal calprotectin in the diagnosis of inflammatory bowel disease BMJ February 13, 2023, 380 e068947; DOI: https://doi.org/10.1136/bmj-2021-068947 Investigating suspected lung cancer BMJ July 13, 2022, 378 e068384; DOI: https://doi.org/10.1136/bmj-2021-068384 Investigating hypertension in younger patients BMJ March 24, 2022, 376 e067924; DOI: https://doi.org/10.1136/bmj-2021-067924 Cited by... Hyponatremia and polyuria in an older womanFulltext PDF