Electrophysiology Study - How To Prepare

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About this test

Tell your doctor if you:

  • Are allergic to any medicines, including iodine, or to latex.
  • Have any bleeding problems or take blood-thinning medicine (anticoagulants), including any nonsteroidal anti-inflammatory drugs (NSAIDs) like aspirin or ibuprofen.
  • Are or might be pregnant.
  • Have diabetes.
  • Have ever had clots in your legs, groin, or pelvis.
  • Have a filter in a large vein to prevent clots from traveling to the heart.

Talk to your doctor about any concerns you have about the need for the test, its risks, how it will be done, or what the results will show. To help you understand the importance of this test, fill out the medical test information form Click here to view a form. (What is a PDF document?).

If you are taking blood-thinning medicine, your doctor will likely have you stop taking it a few days before the test.

Arrange for someone to take you home after the test. You may not have to stay in the hospital overnight.

Do not eat or drink (except for a small amount of water) for 6 to 12 hours before the test. If you are taking any medicines, ask your doctor if you should take them on the day of the test.

Take off any nail polish. That will make it easier for doctors and nurses to check the circulation in your fingers and toes.

Be sure to empty your bladder completely just before the test.

By: Healthwise StaffLast Revised: August 26, 2009
Medical Review: Martin Gabica, MD - Family Medicine
John M. Miller, MD - Electrophysiology

© 1995-2011 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated. This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.

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