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Medical Tests

Medical Tests
Information on medical tests, including how to prepare, what to expect, and what the results mean.


Esophagus Tests

Esophagus Tests

What Affects the Test

Factors that can interfere with your test or the accuracy of the results include:

  • Medicines used to treat gastroesophageal reflux disease (GERD), such as antacids (Tums or Rolaids), acid reducers (Axid, Pepcid, Tagamet, or Zantac), or proton pump inhibitors (Prevacid, Prilosec, Nexium).
  • Medicines used to treat asthma and emphysema, especially theophylline.
  • Medicines used to treat Parkinson's disease, muscle spasms in the bladder and intestines, and some eye problems.
  • Corticosteroids, such as prednisone.
  • Heart and blood pressure medicines, such as calcium channel blockers, alpha-blockers, and beta-blockers.
  • Medicines that act on the nervous system, such as anti-anxiety medicines, anesthetics, and narcotics.
  • Smoking or drinking alcohol within 24 hours of the test.
  • Eating or drinking within 8 hours of the test.

Author: Maria G. Essig, MS, ELS Last Updated: May 8, 2007
Medical Review: Kathleen Romito, MD - Family Medicine
Jerome B. Simon, MD, FRCPC, FACP - Gastroenterology

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Test Overview
Why It Is Done
How To Prepare
How It Is Done
How It Feels
Risks
Results
What Affects the Test
What To Think About
References
Credits