Dialysis Technician Practice Exam

Prior to starting dialysis, which two elements need to be assessed in a fistula or graft?

1. Pulse and Thrill

2. Temperature and Color

3. Blood Pressure and Heart Rate

4. Oxygen Levels and Capillary Refill

The correct answer is: Pulse and Thrill

Assessing pulse and thrill in a fistula or graft prior to starting dialysis is essential to ensure proper vascular access functionality. The pulse can give an indication of blood flow through the access, revealing whether there is adequate circulation and thus the potential for successful dialysis treatment. Additionally, the thrill is a palpable vibration that should ideally be present over the fistula or graft, indicating that the vessel is patent and blood is flowing appropriately. If either the pulse or the thrill is weak or absent, it may signal problems such as thrombosis or failure of the access, necessitating further evaluation before proceeding with dialysis. This assessment is critical for ensuring patient safety and effective treatment. The other options, while they may pertain to general patient assessment, do not specifically address the functionality and status of the vascular access required for dialysis.