ORLANDO HEART CENTER DUAL ISOTOPE ADENOSINE STRESS TEST Please read the following instructions carefully! What to do the day of the test: Upon arrival at the doctor's office.
• No food or drink four (4) hours prior to your appointment. If you eat
A Nuclear Medicine Technologist will escort you to an exam room to explain
or drink, the test will be rescheduled.
the procedure. An intravenous line will be started in your arm to administer
• No caffeine, decaffeinated beverages or chocolate for 24 hours prior to
the Adenosine/Dipyridamole and isotope injections. The technologist will
your appointment. This includes coffee, tea, cocoa, soda pop, etc.
then inject the Thallium into the IV line.
• Plan on spending four (4) hours for the test. You will have short breaks
You will be asked to lie flat on your back on an imaging table with your left
arm above your head. It is very important for you to lie as still as possible
• Bring or wear loose, comfortable clothing and shoes suitable for brisk
during the imaging session except for normal breathing. The cameras will
walking or jogging. No heels or sandals. Wear slacks or shorts. Do not
slowly move around your chest over a period of twenty (20) minutes.
wear a dress, full slip, or tight jeans.
You will then be taken to the treadmill room in preparation for the
• Bring a list of your current medications OR your medications in their
Adenosine/Dipyridamole portion of the test. A medical assistant will obtain a
medical history from you and explain this aspect of the test. You will be
• If you are pregnant, may possibly be pregnant, or are a nursing
asked to sign a consent form and any questions will be answered at this
mother, your scan should be rescheduled for a later date. Discuss
time. The medical assistant will prepare your chest for the placement of small
this with your physician prior to your exam.
plastic pads for monitoring and obtaining a baseline EKG.
• PLEASE take your medications with sips of water unless otherwise
Upon the nurse’s arrival, you will be given the Adenosine/Dipyridamole
medicine gradually through the IV line. During this time, if you develop any discomfort, please inform the nurse immediately. You may be asked to walk
What is a dual isotope Adenosine/Dipyridamole stress test?
on the treadmill for three minutes after the medicine. A second radioactive
This procedure is used to evaluate the adequacy of the blood supply to the
tracer, Myoview, will be given following the Adenosine/Dipyridamole.
heart muscle during periods of exercise (stress) and rest.
Upon completion of the Adenosine/Dipyridamole portion, the EKG pads and
Adenosine/Dipyridamole is used in place of or with the treadmil to
IV will be removed. You will have an interval of time to wait prior to the
temporarily expand or increase the size of the coronary arteries.
second set of pictures. During that waiting period, you may have a small low
Thallium-201 and Technetium-99M Myoview are radioactive tracers used to
fat meal, regular coffee (no cream), and any other liquids.
examine coronary artery circulation. The arteries that supply blood to the
After the second imaging session of 20 minutes, you may resume your
heart muscle can become clogged or narrowed from the buildup of plaque
regular diet and routine. You will receive a call from our office within 2
(atherosclerosis or coronary artery disease). The tracer images allow us to
working days with the results of the scan. A copy of the report will be sent to
see the heart muscle that is receiving the blood supply.
1222 South Orange Avenue, 3rd Floor, Orlando VERY IMPORTANT! 407-650-1302 7236 Stonerock Circle, Orlando • If you need to cancel or reschedule this test, you MUST call 48 hours 407-370-5858 prior to the appointment time: 10000 W. Colonial Drive, Ste. 484, Ocoee 407-650-1302. 407-290-3050 • If you do not show for the appointment, or you do not give 48 hours 11309 Lake Underhill Road notice of need to cancel or reschedule, you will be charged a fee of 407-380-6020 up to $200 to cover the cost of the drugs ordered for your test.
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ORLANDO HEART CENTER