An examination during the tachyarrhythmia will reveal a heart rate greater than 150 (normal is 60 to 100 beats per minute), and blood pressure that is normal or low. If a tachyarrhythmia is not present, the physical exam may be completely normal.
Wolff-Parkinson-White syndrome may be revealed by the following tests:
- ECG (electrocardiogram), which looks for a finding called a "delta wave"
- continuous ambulatory monitoring (Holter monitor), which may record an episode of arrhythmia
- EPS, an intracardiac electrophysiologic study showing the accessory pathway
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