PAEA Surgery End Of Rotation (EOR) Practice Exam

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Prepare for the PAEA Surgery End Of Rotation Exam. Enhance your learning with expertly curated questions and detailed explanations to excel in your surgical rotation assessment. Start today!

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How long before a fistula must be created for it to be used?

1 week
2-4 months
6 weeks
3 months

The correct answer is: 2-4 months

A fistula, particularly an arteriovenous (AV) fistula used for hemodialysis, requires a maturation period before it can be effectively utilized. Generally, a fistula should be created at least 2-4 months prior to its intended use. This period allows for sufficient blood flow to develop through the fistula, causing the veins to enlarge and become robust enough to support regular needle placement and repeated access for dialysis. During this maturation period, factors such as blood volume, flow rates, and tissue remodeling take place, ensuring that the fistula can withstand the pressures associated with dialysis. Using a fistula too early can lead to complications, including inadequate dialysis, difficulties in accessing the fistula, and increased risk of thrombosis. Therefore, establishing the fistula well in advance of its use is essential for optimal patient care and to ensure effective dialysis treatment.