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Akutt nyresvikt, årsaker: Postrenal svikt

Innhold i artikkelen

Nyrer og urinveier

Denne tilstanden kalles på fagspråket ofte for urinretensjon, fordi den skyldes at noe blokkerer urinstrømmen fra nyrene. Postrenal svikt er skyld i 10 prosent av alle tilfeller med akutt nyresvikt/nyreskade. Denne tilstanden kan oppheves og normaliseres, med mindre avstengningen har stått på så lenge at det har gitt varig nyreskade. Avstegning av en eller begge urinlederne kan forårsakes av:

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  • Nyrestein
  • Kreft i urinveiene eller omgivende organer (som vokser inne i urinlederen og blokkerer den)
  • Medisiner

Avstengning av urinblæren kan forårsakes av:

  • Blærestein
  • Forstørret prostata (den vanligste årsaken hos menn)
  • Blodansamling som levrer seg
  • Blærekreft
  • Nevrologisk sykdom som hindrer blæren i å trekke seg sammen for tømning

Behandlingen består i å fjerne det som forårsaker blokkeringen. Når blokkeringen er fjernet, vil nyrene vanligvis gjenvinne sin funksjon i løpet av 1-2 uker, hvis det ikke foreligger infeksjon eller andre problemer.

Vil du vite mer

Dette dokumentet er basert på det profesjonelle dokumentet Nyreskade, akutt . Referanselisten for dette dokumentet vises nedenfor

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