Wk 5 Overview of Dialysis Flashcards
How often is peritoneal dialysis done?
4-6 hours a day
How often is hemodialysis done?
4-5 hours at a time, three days a week
What is the dialysis solution called?
Dialysate
How does hemodialysis work?
Uses semi-permeable membrane outside of the body
How do peritoneal dialysis work?
Uses peritoneum as semi-permeable membrane
What type of access is the most common for hemodialysis?
AV fistula
What is an AV fistula?
Anastamosis of patient’s vein and artery, most common in the forearm
What is the disadvantage of an AV fistula?
Requires months to “mature” before using
Is an AV fistula permanent or temporary?
Permanent
How long can an AV fistula last for dialysis?
If it is done well in the first 6 months, it can last up to 20 years
What should a nurse do if a patient has an AV fistula?
Assess for bruit and thrill every shift
Assess peripheral perfusion distal to site
What should a nurse NOT do if a patient has an AV fistula?
Take BP, start an IV in affected arm
How do you confirm patency of an AV fistula?
Feel for a thrill, and hear a bruit
What is the difference between an AV fistula and an AV graft?
With an AV fistula, the artery and vein are actually anastamosed together. With an AV graft, a synthetic loop is connecting the artery to the vein
What is the main advantage of an AV graft over an AV fistula?
It matures quicker, it can be used faster
