Which assessment is essential to evaluate AV graft function beyond detecting a thrill?

Which assessment is essential to evaluate AV graft function beyond detecting a thrill?

• A. Auscultate for bruit.
• B. Check blood pressure in the leg.
• C. Measure bilirubin levels.
• D. Monitor serum calcium.

Answer: (A)

Assessing AV graft function hinges on evaluating both the palpable thrill and the audible bruit. The thrill confirms that flow exists through the graft, but listening for a bruit over the graft site provides information about the patency and quality of flow across the anastomosis. A normal, continuous bruit suggests the graft is patent and functioning; a diminished or absent bruit raises concern for stenosis or impending occlusion, signaling a need for further evaluation or intervention. The other options don’t reflect graft patency: leg blood pressure isn’t a measure of an arm graft’s function, and bilirubin or calcium levels don’t indicate patency or flow in the vascular access.

Assessing AV graft function hinges on evaluating both the palpable thrill and the audible bruit. The thrill confirms that flow exists through the graft, but listening for a bruit over the graft site provides information about the patency and quality of flow across the anastomosis. A normal, continuous bruit suggests the graft is patent and functioning; a diminished or absent bruit raises concern for stenosis or impending occlusion, signaling a need for further evaluation or intervention. The other options don’t reflect graft patency: leg blood pressure isn’t a measure of an arm graft’s function, and bilirubin or calcium levels don’t indicate patency or flow in the vascular access.