<prompt> A patient in ICU was on invasive monitoring with intra aerial canulation through right radial aery for last 3 days. Later he developed swelling and discolouration of right hand. The next line of management isStellate ganglion blockBrachial BlockRadial Nerve blockCeliac plexus block  <response>: A i.e. Stellate ganglion block The patient has developed vasospasm reflex sympathetic dystrophy as indicated by development of swelling discolouration of hand Stellate Cervicothoracic Block in reality blocks upper thoracic and cervical ganglion. It is indicated in : - Reflex sympathetic dystrophyQ - Vasospastic disorder of upper extremityQ - Head, Neck, Arm Upper chest pain 