Final answer:
The nurse should document the finding of a bruit over the site of the client's AV fistula in the electronic medical record.
Step-by-step explanation:
The nurse should document the finding of a bruit over the site of the client's AV fistula in the electronic medical record.
A bruit is a abnormal sound caused by turbulent blood flow, and its presence indicates the functioning of the fistula. It is a positive finding and does not require any immediate action.