How To Prepare
Do not eat or drink anything (other than water) for at least 8 hours before the test.
Many medicines may affect the results of this test. Be sure to tell your doctor about all the nonprescription and prescription medicines you take.
Talk to your doctor about any concerns you have regarding the need for the test, its risks, how it will be done, or what the results will mean. To help you understand the importance of this test, fill out the medical test information form (What is a Reference PDF Opens New Window document?).
|By:||Reference Healthwise Staff||Last Revised: Reference January 27, 2011|
|Medical Review:||Reference E. Gregory Thompson, MD - Internal Medicine
Reference George Philippides, MD - Cardiology