Dialysis Process Overview
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Questions and Answers

What is the function of the dialyzer in hemodialysis?

  • Generate dialysate
  • Maintain ideal electrolyte concentrations
  • Remove excess fluid using ultrafiltration
  • Circulate blood through a synthetic semipermeable membrane (correct)
  • In hemodialysis, how are toxins and wastes primarily removed from the blood?

  • Dialysate circulation
  • Osmosis
  • Diffusion (correct)
  • Ultrafiltration
  • What is the purpose of osmosis in hemodialysis?

  • To remove uremic toxins and wastes
  • To circulate the dialysate
  • To move fluid under high pressure
  • To remove excess fluid from the blood (correct)
  • What is the preferred method of permanent vascular access for dialysis?

    <p>Creating an arteriovenous fistula surgically (C)</p> Signup and view all the answers

    Why is heparin given during dialysis?

    <p>To keep blood from clotting in the dialysis circuit (D)</p> Signup and view all the answers

    Which vein is rarely used for vascular access in hemodialysis due to an increased risk of central stenosis?

    <p>Subclavian vein (B)</p> Signup and view all the answers

    How is immediate access for acute hemodialysis typically achieved?

    <p>By inserting a double-lumen catheter into the subclavian vein (D)</p> Signup and view all the answers

    What are some risks associated with the method of vascular access involving catheters?

    <p>Hematoma, pneumothorax, infection, vein thrombosis (A)</p> Signup and view all the answers

    In PD, which membrane serves as the semipermeable membrane for the clearance of uremic toxins?

    <p>Peritoneal membrane (D)</p> Signup and view all the answers

    What does the movement of solute from the blood into the dialysate fluid through the peritoneal membrane in peritoneal dialysis represent?

    <p>Diffusion (D)</p> Signup and view all the answers

    What is the primary function of the cuffs made of Dacron polyester in most adult catheters used in dialysis?

    <p>Limit the movement of the catheter (C)</p> Signup and view all the answers

    What type of medications are typically not well dialyzed out during hemodialysis?

    <p>Fat soluble medications (B)</p> Signup and view all the answers

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