Practice Question
Which actions protect an arteriovenous fistula for hemodialysis?
Answer Choices:
Correct Answer:
Do not allow blood pressure cuffs or blood draws on the access arm
Rationale:
⭐ Any external pressure on an AV fistula can compromise blood flow, which increases the risk of thrombosis and permanent access failure. This includes blood pressure cuffs, which compress the vessel and can completely obstruct arterial-to-venous flow.
⭐ Using the arm for blood draws or IV insertions causes trauma to the fistula vessels and promotes clot formation. These micro-injuries weaken the vessel wall, increasing the chance of rupture or collapse.
⭐ The fistula serves as the patient’s primary access for lifelong hemodialysis, so maintaining its integrity is essential for treatment continuity. Damage to this access can result in emergency catheter placement, which carries infection and clot risks.
⭐ Avoiding any procedures on the fistula arm ensures consistent patency, maintains dialysis adequacy, and supports long-term vascular health. This is why strict protection protocols exist for all dialysis patients.
❌ Incorrect Answers (Explained with Emojis)
❌ Flush every shift → 🚫 Fistulas are not central lines and should never be flushed; this may damage the access.
❌ Take blood from the site → 🧪 Causes direct vessel trauma and promotes thrombus formation.
❌ Apply tight tourniquets → 🔴 Completely obstructs blood flow and can permanently destroy the fistula.
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This question is from MIDTERM EXAM FALL 2025 which contains 97 questions.
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Question Details
- Category: RN Nursing Exam(s)
- Subcategory: General Exams
- Domain: Adult Health Exams 🏯
- Answer Choices: 4