The nurse is recording pulsus paradoxus results on a client…

The nurse is recording pulsus paradoxus results on a client with acute pericarditis.  The systoloic Korotkoff sound during expiration is 115 mm Hg.  The systolic Korotkoff sound with the normal inspiration is 84 mm Hg.  What is the amount of the Paradox?   (Round to the nearest whole number when calculations are complete.)