<prompt> Most commonly used approach to brachial Plexus block?InterscaleneSupraclavicularInfraclavicularAxillary  <response>: Supraclavicular is the most commonly used approach to brachial Plexus block.The supraclavicular approach to the brachial plexus characteristically is associated with a rapid onset of anaesthesia and a high success rate.The supraclavicular approach has more even distribution of local anaesthesia. 