43
42
AV-fistula
This is the most common type of access. The artery (red) has been
connected to a superficial vein (blue), and after a maturation period the
vein has become arterialized with thicker walls and larger diameter.
Graft
The connection between artery and vein is made through a tube made
either of an artificial material, or from part of one of your own blood
vessels.
Catheter
Usually inserted into a vein in the neck or shoulder.
Typically, hemodialysis patients are administered heparin to reduce
potential clotting during treatment.
Note:
The time the blood pump is stopped during treatment should be
minimized to reduce the risk of clotting.
Blood Access Types
A dialysis machine is needed to perform hemodialysis.
If the dialyzer is the kidney, the machine could be said to correspond to the rest of the body, providing the kidney
with blood and controlling the whole process.
Different Components of the Hemodialysis System
HEMODIALYSIS BASICS
- Starting the Treatment
Blood access
- Starting the Treatment
Blood access
- Starting the Treatment
Blood access
1. The access: the means by which blood is removed and returned to the body.
2. The blood monitor: pumps blood through a disposable circuit at a continuous, controlled speed from the
access, through the dialyzer and back to the access.
3. The dialyzer: is connected within the disposable circuit. This is where waste products and excess fluid
are removed from the blood.
4. The fluid circuit: prepares and pumps the dialysate through the dialyzer and out to drain.
5. The reverse osmosis unit: provides a continuous flow of clean water to the dialysis machine during
treatment and disinfection.
6. A-concentrate: contains electrolytes, including sodium, potassium, calcium, magnesium chloride and
acetic acid.
7. B-concentrate: contains the buffer bicarbonate and sodium
1
5
6
7
3
To Next Page
Loading...
Need help?
General
