She had to visit the hospital once a week for kidney dialysis before dying

[석수]

dialysis 투석

인공투석(人工透析 ;Artificial Dialysis)
일반적으로 신장투석(腎臟透析, Renal dialysis[영어], 肾透析[중국어]을 의미

noun [ U ]

   medical, chemistry   specialized

uk 

a process of separating substances from liquid by putting them through a thin piece of skin-like material, especially in order to remove waste substances from the blood of someone whose kidneys are not working correctly:

a dialysis machine

kidney dialysis 

She has to visit the hospital once a week for kidney dialysis.

on dialysis She is on (= being treated by) dialysis.


dialyzer

He underwent his first course of dialysis, a two-hour process.

After seven years on dialysis, her condition is deteriorating.

High-dependency patients, such as those requiring dialysis, must continue to be treated during the pandemic.

Some patients visit dialysis centres multiple times each week.