dialysis
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dialysis
A medical procedure for cleaning the blood (colloquially 'blood washing'), used in kidney failure to remove toxins and excess fluid from the body.
Der Patient muss dreimal pro Woche zur Dialyse ins Krankenhaus.
The patient has to go to the hospital for dialysis three times a week.
'Die Dialyse' (dialysis) is a technical term from medicine. It is used almost exclusively in this context when talking about hospitals, doctors, and kidney diseases.
Wegen seiner Nierenschwäche ist er auf die Dialyse angewiesen.
Because of his kidney weakness, he is dependent on dialysis.
Pay attention to the prepositions. You go 'zur Dialyse' (to dialysis, movement) and are 'an der Dialyse' (on dialysis, literally attached to dialysis) or 'auf Dialyse angewiesen' (dependent on dialysis, state).
Meine Großmutter muss jeden zweiten Tag zur Dialyse fahren.
My grandmother has to go to dialysis every other day.
Common verbs in connection with dialysis are 'brauchen' (to need), 'bekommen' (to receive/get), or 'sich unterziehen' (to undergo). A person who needs the procedure is often 'dialysepflichtig' (requiring dialysis).
Nach dem Unfall musste er sich einer Dialyse unterziehen.
After the accident, he had to undergo dialysis.