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Akutt nyreskade, diagnosen: Blodprøver

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Blodprøve

Siden symptomer kan være fraværende, vage eller ukarakteristiske, må diagnosen baseres på andre funn. Legeundersøkelsen er viktig, men heller ikke den gir særlig ofte funn som retter mistanken mot akutt nyreskade. Nyresvikt påvises derimot forholdsvis enkelt ved hjelp av blod- og urinprøver. Slike tester kan både allmennleger og sykehusavdelinger utføre. De inngår i det vanlige testbatteriet som tas ved uklare sykdomsbilder.

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  • Den viktigste blodprøven er måling av kreatinin. Ved nedsatt nyrefunksjon stiger kreatinin-verdien i blodet ganske raskt. Prøven er også velegnet til å følge forløpet av en akutt nyreskade.
  • Elektrolytt-verdiene i blodet kan også være unormalt høye eller lave som følge av utilstrekkelig filtrering av blodet i nyrene. Det gjelder elektrolytter som natrium, kalium, klor, kalsium.
  • Ved langvarig og alvorlig nyreskade kan mengden røde blodceller bli lav. Dette kalles anemi.

Vil du vite mer

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

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