How To Prepare
Tell your doctor if you:
Unless the procedure is being done in an emergency, you
will be asked to sign a consent form. 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 PDF document?).
You may not be able to eat or drink for several hours before the test. Some
blood tests, including those to check for
anemia and blood-clotting problems, may
be done before the test.
Because this is a test involving your heart, you may have to stay
overnight in the hospital to be monitored closely. If a drain is inserted
during the test, you may have to stay for several days.