Hemodialysis is the type of dialysis used for kidney failure which uses a machine to filter out the blood outside the human body. At the onset of a hemodialysis, a dialysis technician places the needles into your arm. A pump over the hemodialysis machine pulls your bloodstream via one of these needles into a tube. The blood travels through the tube to the filter, known as a dialyzer. Inside the dialyzer, the blood flows through the thin fibre that filters out:
- extra salt
- extra fluid
After the dialyzer filters the blood, a different tube carries the patient’s blood back to his body through the second needle.