Instead, ordinary stress EKG testing is performed and you are pushed until complete exhaustion (max heart rate) and if the
test is inconclusive, the next step is nuclear
stress test and then angiography if CAD is suspected, or Holter/heart monitors and then EP study with arrhythmias.
Honestly I don't understand why the original poster is getting a stress echo instead of a normal stress test, if the point is only to reveal SVT.