How is the bruit in an AV fistula or graft detected?

Listening with a stethoscope is a fundamental method used to detect a bruit in an arteriovenous (AV) fistula or graft. A bruit is a sound that signifies turbulent blood flow in the vessel, typically indicating that the access is functioning properly. When a healthcare professional uses a stethoscope to auscultate over the fistula or graft site, the characteristic "whooshing" sound can be heard, which is essential in assessing the adequacy of the vascular access.

Utilizing a stethoscope allows for a non-invasive and effective evaluation of blood flow dynamics, making it a vital skill for hemodialysis technicians. Regularly checking for a bruit helps to ensure that the access is patent and functioning as intended, which is crucial for successful dialysis treatments.