Final answer:
To assess the patency of a newly placed arteriovenous graft, it's best to listen for a bruit and monitor the pulses and neurovascular status distal to the graft. Bruits indicate blood flowing through the graft, while monitoring distal pulses ensures limb blood flow is maintained.
Step-by-step explanation:
To assess the patency of a newly placed arteriovenous graft for dialysis, the most appropriate method is option C, which is to listen with a stethoscope over the graft for the presence of a bruit. A bruit is a whooshing sound heard over a blood vessel when there is turbulent flow, typically caused by narrowing or an obstruction, which should not be present in a newly placed graft. If a bruit is heard, this indicates that blood is flowing through the graft, suggesting patency.
However, if the bruit is overly loud or exhibits a change in quality, it may suggest the presence of a stenosis or other complication. Option D, which is to frequently monitor the pulses and neurovascular status distal to the graft, is also important to ensure adequate blood flow to the limb. Options A and B are not standard methods to assess the patency of a newly placed arteriovenous graft.