Kidney Failure Flashcards
What are the 2 treatments for kidney failure?
Dialysis and transplant
What do kidneys do?
Remove waste substances from the blood
Where can you get problems if your kidneys don’t work?
Heart, Bones, Nervous System, Stomach, Mouth etc.
What happens when your kidneys don’t work?
Waste substances build up in the blood and you lose your ability to control the levels of ions and water in your body. Eventually results in death.
What do dialysis machines do?
They filter blood
Why does dialysis have to been done regularly?
To keep the concentrations of dissolved substances in the blood at normal levels, and to remove waste substances.
How do dialysis machines work?
The person’s blood flows alongside a selectively permeable barrier, surrounded by dialysis fluid. It’s permeable to things like ions and waste substances, but not big molecules like proteins.
The dialysis fluid has the same [ ] of dissolved ions and [ ] as healthy blood, this means that they won’t be lost during dialysis.
concentration
glucose
Only waste substances (such as [ ]) and excess ions and water [ ] across the barrier.
urea
diffuse
How often do you have to have dialysis?
3 times a week. Each session is 3-4 hours
What could dialysis cause(negative)?
Blood clots or infections
What is the main issue with transplants?
They can be rejected by the body
What is kidney transplant the only treatment for?
Kidney disease
Healthy kidneys are usually transplanted from who?
From people who have died suddenly and who are on the organ donor register or carry a donor card. or alive people
Why are kidneys rejected?
They are rejected by the patient’s immune system - the foreign antigens on the donor kidney are attacked by the patient’s antibodies.
