'''Hyponatraemia''' sive '''hyponatriaemia''' ([[ICD-10]]: E87.1) est in [[medicina]] minor (''hypo-'') [[Natrium|natrii]] concentratio (''-natr(i)-'') in [[sanguis|sanguine]] (''-aemia'')<ref>{{cite journal |last1authors= Williams|first1=DM|last2= D. M., Gallagher|first2= M|last3=., Handley|first3= J|last4=., Stephens|first4=JW J. W. |title=The clinical management of hyponatraemia. |journal=Postgraduate Medical Journal |dateyear=Iul 2016 |month=Iul |volume=92 |issue=1089 |pages=407–11 |pmid=27044859|doi=10.1136/postgradmedj-2015-133740}}</ref> et frequentissima [[electrolytumElectrolytorum perturbatio|electrolytorum]] perturbationum]]<ref>{{cite journal |authors=Upadhyay A., Jaber BLB. L., Madias NEN. E. |title=Incidence and prevalence of hyponatremia |journal=AmAmerican JJournal of MedMedicine |year=2006 |month=Iul |volume=119 (suppl 1) |pages=S30-5 |url=https://www.ncbi.nlm.nih.gov/pubmed/16843082 }}</ref>. Symptomata multipliciter esse possunt. Haec perturbatio parvo valore (< 135 mmol/L) in sanguine aestimatur. Causae hyponatraemiae sunt, per exemplum, consumptio diuretica (thiazidi), aetas (senectus), hypoglykaemia, [[diabetes mellitus]], consumptio [[Inhibitor enzymi angiotensinum convertentis|inhibitorum enzymi angiotensinum convertentes]], oesophagitis, infectiones [[systema urogenitale|systematis urogenitalis]].<ref>{{cite journal |authors=Rastogi D., Pelter M. A., Deamer R. L. |title=Evaluations of Hospitalizations Associated With Thiazide-Associated Hyponatremia |journal=J Clin Hypertensio |year=2012 |volume=14 |month=Mar |pages=158–64 |url=http://onlinelibrary.wiley.com/doi/10.1111/j.1751-7176.2011.00575.x/full}}</ref>
Correctio hyponatraemiae diligenter fienda est; si quae enim nimis cito peragatur, in [[cerebrum|cerebro]] [[myelinolysis pontina centralis]] periculosa oriatur.
