<prompt> Clinical finding in AV fistula is one of the followingPericarditisSinus tachycardiaCardiac arrhythmiaHypothermia  <response>: The mechanism behind bradycardia associated with Branham sign is likely similar to the reflex arc that occurs during the Bezold-Jarisch reflex. Presence of an AV fistula results in increased cardiac output because of low resistance across the AV shunt. Ref Davidson 23rd edition pg 467 