Nuclear Stress Test (Myocardial Perfusion (MIBI))
A MIBI stress test is a stress test assisted by nuclear medicine. It gives a more complete assessment on the presence of coronary artery disease. This test requires an elevated heart rate and therefore requires the patient to achieve a target heart rate by using a treadmill. Patients who can’t reach a target heart rate using exercise, will be administered Dipyridamole to simulate the effect of exercise on the heart. If you receive Dipyridamole, you may feel short of breath or develop a mild headache. This is easily and quickly reversed with the antidote Aminophylline.
What to Expect:
- This exam is administered over 2 days, you will be scheduled for back-to-back appointments through central booking. This exam may require several hours of your time each day.
- Day 1 is a “rest test”. This provides us with a record of your heart activity at rest. We will administer MIBI and perform imaging on the heart 1-2 hours later.
- Day 2 (the following day) is the “stress test”, where we achieve a target heart rate. Again, this portion of the exam will be followed up with imaging 1-2 hours later.
DO NOT EAT OR DRINK anything for 4 hours. You may have NO CAFFEINE (this includes foods, beverages or any medications such as Tylenol #2, 3 or Excedrin) for 24 hours before the exam. If you are diabetic, you may fast for only 2 hours before your appointment. Please wear a short sleeve shirt with buttons going all the way down and a clean pair of running shoes. Please bring your current medications with you.