Overview of the hemodialysis apparatus
- Rebecca J Schmidt, DO, FACP
Rebecca J Schmidt, DO, FACP
- Professor of Medicine
- West Virginia University School of Medicine
- Jean L Holley, MD, FACP
Jean L Holley, MD, FACP
- Clinical Professor of Medicine
- University of Illinois, Urbana-Champaign
For patients with end-stage renal disease (ESRD), renal replacement therapy is achieved by dialysis (hemodialysis or peritoneal dialysis) or kidney transplantation. Although true and complete replacement of renal function is not provided by dialysis, this modality removes metabolic wastes and excess body water and replenishes body buffers in order to sustain life.
The apparatus used to conduct hemodialysis consists of the following components:
●Dialysis solution (dialysate)
●Tubing for transport of blood and dialysis solution
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- SOLUTE CLEARANCE
- Diffusive transport
- Convective transport
- Flow rates
- FLUID REMOVAL
- Dialyzer types
- - Type of membrane material
- - Blood volume capacity
- - Surface area
- - Clearance
- - Ultrafiltration coefficient
- - Sterilization and reuse
- DIALYSIS SOLUTION
- - Aluminum
- - Copper and chloramine
- - Bacteria
- - Endotoxin
- Components of the dialysate
- DIALYSIS TUBING
- DIALYSIS MACHINES
- INFORMATION FOR PATIENTS