Urea Reduction Ratio

Urea Reduction Ratio

Urea Reduction Ratio (URR) ist ein Parameter um die Dialyseeffektivität zu bestimmen und ein wesentlicher Bestandteil zur Beurteilung der Dialyseeffizienz. Ein weiterer Parameter zu dieser Beurteilung ist das Kt/V.

Der Wert kann durch die Formel

URR = \frac{U_{pre}-U_{post}}{U_{pre}} \times 100\%

ermittelt werden.

Dabei ist

  • Upre Harnstoff-Level vor der Dialyse
  • Upost Harnstoff nach der Dialyse

Bei der Hämodialyse (3 Mal/Woche) sollte dabei ein URR von 65% erreicht werden. Das entspricht einem Kt/V von 1,2. Wird öfter als dreimal pro Woche dialysiert, kann dieser Wert auch geringer sein.

Siehe auch


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