Many medicines may change the results of this test. Be sure to tell your doctor about all the nonprescription and prescription medicines you take. If you take heart medicines, your doctor will tell you how to take your medicines before you have this test.
Remove all jewelry from your neck, arms and wrists. Men are usually bare-chested during the test. Women may often wear a bra, T-shirt or gown. You will be given a cloth or paper covering to use during the test.
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.
More Answers from Healthwise