An electrophysiology study will show whether you have an
abnormal heartbeat that needs treatment. (Sometimes the treatment is done
during the test.)
What Affects the Test
Reasons you may not be able to have the test or
why the results may not be helpful include:
Taking warfarin (such as Coumadin) and having problems keeping a safe level of the medicine in your blood.
Extreme anxiety that causes high blood pressure and irregular
Kidney or liver failure.
Not being able to
follow directions during the procedure.
Not being able to lie flat.
Ongoing bleeding problems or infection.
What To Think About
An electrophysiology study can be scary. You may find it helpful to
talk to your doctor ahead of time about your fears. If you are awake during the
test, you can ask questions and let your doctor and others know how you're
Chernecky CC, Berger BJ (2013). Laboratory Tests and Diagnostic Procedures, 6th ed. St. Louis: Saunders.
Fischbach FT, Dunning MB III, eds. (2009).
Manual of Laboratory and Diagnostic Tests, 8th ed.
Philadelphia: Lippincott Williams and Wilkins.
Miller JM, Zipes DP (2012). Diagnosis of cardiac arrhythmias. In RO Bonow et al., eds., Braunwald’s Heart Disease: A Textbook of Cardiovascular Medicine, 9th ed., vol. 1, pp. 687–709. Philadelphia: Saunders.
Tedrow UB, et al. (2011). Electrophysiology and catheter-ablative techniques. In V Fuster et al., eds., Hurst's The Heart, 13th ed., vol. 1, pp. 1058–1070. New York: McGraw-Hill.
Primary Medical Reviewer
Rakesh K. Pai, MD, FACC - Cardiology, Electrophysiology
Specialist Medical Reviewer
John M. Miller, MD, FACC - Cardiology, Electrophysiology