Our Services

Nuclear Stress Testing

What is a Nuclear Stress Test?

A Nuclear Stress Test is performed to measure the heart’s blood flow and response to external stress. It is best used to diagnose ischemic heart disease which occurs when a certain area of the heart experiences a reduced blood supply. Nuclear stress testing is recommended most in patients who have abnormal ECGs, strong family history of ischemic heart disease, and hypertension.

What to Expect During a Nuclear Stress Test

A nuclear stress test consists of three parts: images at rest, the exercise/treadmill portion, and images post-exercise. Initially, the patient is injected with one dose of a nuclear isotope and then placed under the nuclear camera where images at rest are taken. These images serve as the baseline functionality of the heart at rest. Then, the patient will have electrodes placed on his or her chest to record an electrocardiogram throughout the duration of the exercise portion of the test. The patient will be asked to walk on the treadmill for a few minutes. During this time, the difficulty of the test may increase to further gage the heart’s response to stress. Nurses will be interacting with the patient throughout the exercise portion in order to record any symptoms being experienced. During the treadmill exercise, the patient will be injected again with a dose of the nuclear isotope. Once the exercise portion is completed, patients will be allowed to leave for lunch and will be given a return time or 1 to 2 hours later. Upon return, patients will go under the nuclear camera to capture the final stress images. The entire test should last 4-6 hours.

For Your Convenience

Columbia Cardiology has two ICANL accredited nuclear labs – one at our Downtown Columbia location and one at our Lexington location. Columbia Cardiology has three certified Nuclear Technologists. After the test, you will either be able to see your doctor on the same day or you will receive a phone call from one of our dedicated nuclear nurses with you results on the following day.

Please see the following document with instructions before having your nuclear stress test:
Nuclear Stress Test Instructions