Dialysis Technician Practice Exam

When managing a fistula or graft, how often should the site be assessed for patency?

1. Every shift

2. Every hour

3. Once daily

4. Weekly

The correct answer is: Every shift

Assessing the fistula or graft site for patency every shift is crucial in ensuring optimal blood flow during dialysis treatments. This frequent monitoring allows technicians to identify any signs of complications, such as thrombosis or infection, in a timely manner. By checking the site every shift, technicians can observe for changes in the thrill (the vibration felt over the site) and bruit (the sound made by blood flow), both of which are indicators of a properly functioning vascular access. Early detection of any issues can facilitate prompt intervention, which is vital for maintaining effective dialysis treatments and preventing unnecessary complications. Other monitoring frequencies, such as every hour, might lead to excessive and unnecessary stress to the patient and the site itself without providing significant benefits. Daily or weekly assessments may not allow for the timely identification of issues that could adversely affect the efficacy and safety of dialysis. Therefore, assessing the site every shift strikes the right balance between thorough monitoring and practicality in clinical practice.