hemodialysis
Pronunciation: HEE-mo-die-AL-ih-sis
A renal replacement therapy that filters blood through an external machine to remove waste products and excess fluid.
Full Definition
Hemodialysis is a form of renal replacement therapy that uses an artificial kidney (dialyzer) to remove waste products, excess salt, and water from the blood when the kidneys are unable to perform these functions adequately. In pediatric nephrology, hemodialysis is typically reserved for children with acute kidney injury or end-stage renal disease. The procedure requires vascular access through an arteriovenous fistula, graft, or central venous catheter. Pediatric hemodialysis presents unique challenges including maintaining adequate vascular access, managing fluid balance, and ensuring proper growth and development.
Usage
Usage note: May be abbreviated as HD in informal clinical notes but spell out in formal documentation.
In Context
- "The adolescent was started on hemodialysis three times weekly while awaiting kidney transplantation." — Dialysis unit documentation
- "Hemodialysis access planning should begin when GFR falls below 30 mL/min/1.73m²." — Clinical guideline