PAEA Surgery End Of Rotation (EOR) Practice Exam

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What is the preferred method for vascular access in dialysis?

  1. Central venous catheter

  2. AV (arteriovenous) fistula

  3. Dialysis graft

  4. Peritoneal catheter

The correct answer is: AV (arteriovenous) fistula

The preferred method for vascular access in dialysis is an arteriovenous (AV) fistula. This preference is due to several key factors that enhance patient care and outcomes. An AV fistula is created by surgically connecting an artery to a vein, which allows for higher blood flow rates and more efficient dialysis treatments. The development and maturation of an AV fistula also lead to a more durable access point compared to other methods. Once matured, an AV fistula can last for many years, reducing the need for repeated access procedures and minimizing complications. Furthermore, using an AV fistula is associated with lower rates of infection and thrombosis compared to central venous catheters and dialysis grafts. These complications can lead to significant patient morbidity and increase the risk of hospitalizations. The lower incidence of complications makes the AV fistula a safer and more reliable option for long-term dialysis patients. In summary, the combination of increased durability, lower complication rates, and improved blood flow makes an arteriovenous fistula the preferred choice for vascular access in dialysis.