Dialysis does the kidneys' job: it removes extra fluid, potassium, and waste. There are two main types.
Hemodialysis
Blood is cleaned by a machine, usually 3 times a week, through an AV fistula, an AV graft, or a dialysis catheter.
Caring for the fistula or graft
- Feel for a thrill (a buzzing vibration) and listen for a bruit (a whooshing sound). Both mean it is working. Report if they are missing.
- No BP cuffs, IVs, or blood draws in that arm.
- No tight sleeves or jewelry, and no sleeping on that arm.
Before and after
- Weigh the patient before and after dialysis.
- Some medications, like blood pressure pills, are often held before dialysis. Follow the order.
- After dialysis, watch for low blood pressure, bleeding at the access site, and dizziness.
- Disequilibrium syndrome: headache, nausea, confusion, or seizures from fluid shifts in the brain. Report it right away.
Peritoneal dialysis
Fluid (dialysate) goes into the belly through a catheter, sits (dwells), and then drains out, often at home or overnight.
- Cloudy drainage is the biggest warning sign. It suggests peritonitis. Report it, along with fever or belly pain.
- Warm the dialysate as directed, never in a microwave.
- If the fluid drains slowly, change the patient's position, check the tubing for kinks, and check for constipation.
- Use strict sterile technique with every exchange.
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Quick answers
What is a thrill and bruit in a dialysis fistula?
A thrill is a buzzing vibration you feel, and a bruit is a whooshing sound you hear. Both show the fistula is working.
What does cloudy peritoneal dialysis drainage mean?
Cloudy drainage is a warning sign of peritonitis and should be reported right away.
Evidence & Clinical Sources
- KDIGO kidney disease guidelines
- Hinkle & Cheever, Brunner & Suddarth's Textbook of Medical-Surgical Nursing, Wolters Kluwer
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