How long does it take to have a nuclear stress test?
If there are no defects then the study is normal. A dual isotope stress or a one day Sestamibi test may take up to three to three and a half hours. A two day Sestamibi test will take about one hour and a half for the stress and about an hour for the rest part.
Thallium scan: A method of examining the heart to obtain information about the blood supply to the heart muscle. In the scan, special cameras take a series of pictures of the heart. Radioactive sestamibi is injected into the bloodstream and serves as a tracer.
- DO NOT eat or drink 6 hours before the test except for plain drinking water: You may drink water anytime. No food or drink with caffeine for 24 hours before the test: No coffee, tea, sodas with caffeine, or chocolate.
- Before the widespread application of technetium-99m in nuclear medicine, the radioactive isotope thallium-201, with a half-life of 73 hours, was the main substance for nuclear cardiography. The nuclide is still used for stress tests for risk stratification in patients with coronary artery disease (CAD).
- A nuclear stress test, also called a myocardial perfusion scan, is a type of nuclear medicine procedure. The test shows the blood flow to the heart muscle when it is stressed by either exercise or a stress inducing medication and to determine what areas of the heart have decreased blood flow.
This is a three part test: 1) a set of pictures when your heart is at rest, 2) a stress test, 3) a second set of pictures after your heart has been stressed. This procedure can last from 2 to 4 hours depending on how long your body takes to clear the isotopes.
- Yes. However, DO NOT eat or drink anything except water for four hours before the test. Avoid all products that contain caffeine for 24 hours before the test. In general, caffeine is found in coffee, tea, colas and other soft drinks, most chocolate products, as caffeine will interfere with the results of the test.
- At other times, especially when the artery is blocked by 70% or more, the buildup of arterial plaque may cause symptoms that include:
- Chest pain.
- Shortness of breath.
- Heart palpitations.
- Weakness or dizziness.
- Thallium scan: A method of examining the heart to obtain information about the blood supply to the heart muscle. In the scan, special cameras take a series of pictures of the heart. Radioactive sestamibi is injected into the bloodstream and serves as a tracer.
It can be found in urine within 1 hour after exposure. After 24 hours, increasing amounts are found in feces. It can be found in urine as long as 2 months after exposure. About half the thallium that enters various parts of your body leaves them within 3 days.
- There is no evidence that magnesium produces systemic poisoning although persistent over-indulgence in taking magnesium supplements and medicines can lead to muscule weakness, lethargy and confusion. Effects of exposure to magnesium powder: low toxicity & not considered to be hazardous to health.
- Word origin: Thallium was named after the Greek word thallos, meaning green shoot or twig. It was named after its green spectral line. Discovery: British chemist William Crookes discovered thallium spectroscopically in 1861. Both Crookes and French chemist Claude Auguste Lamy isolated the element in 1862 independently.
- The half-life of Cardiolite is 6.02 hours. This means that half of the dose you are given will decay in 6.02 hours. Generally, Cardiolite is cleared from your body in 24 hours by natural processes. You won't feel any different after you are injected with Cardiolite.
Updated: 16th October 2019