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Hemodialysis

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What is Hemodialysis?
Hemodialysis is a life-saving treatment that replaces kidney function in patients with chronic kidney disease (CKD). It works by filtering waste products, excess fluids, and toxins from the blood using a machine known as a dialyzer or artificial kidney. This treatment helps maintain the balance of fluids, electrolytes, and acid-base levels in the body.
Who Needs Hemodialysis?
Hemodialysis is commonly prescribed for individuals with end-stage kidney disease—when kidneys can no longer function effectively. The most common causes include:
  • Diabetes
  • Hypertension
  • Glomerular disease
  • Congenital or hereditary kidney conditions
Without proper treatment, waste and fluid build-up can lead to severe complications such as fatigue, shortness of breath, swelling, and heart strain.
How Does Hemodialysis Work?
  • Procedure: Blood is drawn from the patient’s body, filtered through the dialyzer, and returned.
  • Frequency: Typically three sessions per week, each lasting 3–5 hours.
  • Mechanism: The dialyzer uses diffusion, osmosis, and ultrafiltration to cleanse the blood.
  • Note: While hemodialysis replaces filtration, it does not replace the hormonal functions of the kidneys.
Nutritional Considerations
Patients undergoing hemodialysis must adhere to a tailored renal diet to reduce waste buildup and maintain overall health. Our renal dietitians will help you manage:
  • Sodium & Fluid Intake: To prevent swelling and high blood pressure.
  • Potassium & Phosphorus Levels: To avoid heart rhythm issues and bone problems.
  • Protein Consumption: Balanced to support healing without excessive urea buildup.
  • Calories & Vitamins: Optimized based on body weight, activity, and kidney function.
Anemia and Kidney Disease
Anemia is a common condition in CKD patients due to reduced erythropoietin (a hormone produced by healthy kidneys). If not treated, anemia can cause:
  • Persistent fatigue
  • Shortness of breath
  • Dizziness
  • Chest discomfort
Treatments may include iron supplements, ESA (erythropoiesis-stimulating agents), HIF stabilizers, or blood transfusions as needed.