Nuclear Stress Test – Pharmacological
What is a pharmacological nuclear stress test?
A pharmacologic nuclear stress test is used to determine how your heart responds when it
is working the hardest. A medication is given through an IV to replicate stress on the heart
in patients who may not be able to exercise on a treadmill. A small amount of radioactive
material and special imaging equipment are used to better assess the heart’s response to
stress.
Why is this test performed?
The test is used to:
• Determine your likelihood of having significant coronary artery disease.
• Determine how well your heart tolerates stress.
• Identify abnormal heart rhythms.
• Assess your heart valve function.
• Assess the effectiveness of your cardiac treatment plan.
• Help you develop a safe exercise program.
• Assess heart muscle after a heart attack.
Can I eat or drink on the day of the test?
• Yes. However, DO NOT eat or drink anything except water for four hours before the test.
• Avoid all products that contain caffeine for at least 24 hours before the test, as caffeine
may interfere with the results. Caffeine may be found in tea, coffee, carbonated soft
drinks, and chocolate. Please be aware that “decaffeinated” products may contain trace
amounts of caffeine.
• DO NOT SMOKE ON THE DAY OF THE TEST, as nicotine may interfere with the results.
• Any medication should only be taken with small sips of water.
Should I take my medications the day of the test?
Bring a list of all medications you take.
DO NOT take any over-the-counter medication that contains caffeine, such as many diet
pills, NoDoz, and Excedrin, for 24 hours before the test. Ask your physician or health care
provider if you have questions about other medications that may contain caffeine.