This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Nicoladoni sign is positive in a young patient with an aeriovenous fistula. This sign is also known as: 
Select and explain. 
A. Murray sign, B. Frei sign, C. Darrier sign, D. Branham sign
D: Branham sign
Answer: D: Branham sign 
Explanation: Nicoladoni-Branham sign: Compression of a large aeriovenous fistula may cause reflex slowing of the hea rate. Duplex ultrasonography may detect an aeriovenous fistula, especially one that affects the femoral aery and vein at the site of catheter access. Computed tomographic and conventional angiography can confirm the diagnosis. Ref: Creager M.A., Loscalzo J. (2012). Chapter 249. Vascular Diseases of the Extremities. In D.L. Longo, A.S. Fauci, D.L. Kasper, S.L. Hauser, J.L. Jameson, J. Loscalzo (Eds), Harrison's Principles of Internal Medicine, 18e.