<prompt> Which of the following is not done in W.P.W?Treadmill testElectrophysiological studiesOral beta blockerProcainamide  <response>: CI of treadmill test: 1 severe AS 2 DVT 3 Charcots joint 4 WPW 5 MI in first 48 hours 6 Unstable angina during attack 7 Buergers disease 8 Bilateral osteoahritis of knee 