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Doctor insights on: Nuclear Medicine Stress Test Side Effects

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Tomorrow I'm getting a nuclear stress test w cardiolite. Worried about side effects and reaction to the thallium or whatever they use. Should I worry?

Tomorrow I'm getting a nuclear stress test w cardiolite. Worried about side effects and reaction to the thallium or whatever they use. Should I worry?

Isotopes quite safe: Dyes are not used during nuclear stress tests. Trace radioactive isotopes are but there are no significant reactions to these minute doses used considering the thousands of tests done around the globe daily unless one has a history of being allergic to the thallium or cardiolite. ...Read more

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Dr. Heidi Fowler
3,137 Doctors shared insights

Stress (Definition)

Stress affects most people in some way. Acute (sudden, short-term) stress leads to rapid changes throughout the body. Almost all body systems (the heart and blood vessels, immune system, lungs, digestive system, sensory organs, and brain) gear up to meet perceived danger. These stress responses could prove beneficial in a critical, life-or-death situation. Over time, however, repeated stressful situations put a strain on the body that may contribute to physical and psychological problems. Chronic (long-term) stress can have real health consequences and should be addressed like any other health concern. Fortunately, research is showing that lifestyle changes and stress-reduction techniques can help people learn ...Read more


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Can I have a stress test done without the nuclear medicine?

Can I have a stress test done without the nuclear medicine?

Not as good: Stress ekg is a very sensitive test and may show signs of stress induced ischemia, such as st depressions. However, it has low specificity, therefore your md won't be able to tell you where in your heart the problem likely is. Nuclear perfusion studies show defects in the myocardial walls giving more clues regarding the possible affected territory. ...Read more

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Like others, I dread the cardiac stress test or nuclear medicine test. What else is there that can better take its place at general 6 month exam? CT?

Like others, I dread the cardiac stress test or nuclear medicine test. What else is there that can better take its place at general 6 month exam? CT?

Test: Dread? First is the question of do you need any test? If there is some information needed for decision making, the question of which test then comes into play. Discussing suggested testing with your doc is best course. If the doctor doesn't need the information, you don't need the test. All tests have pluses and minuses but patients often ask for what they don't need. ...Read more

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Can anyone tell me about what to expect when I go to do my heart stress test and if there are any side effects of dipyridamole?

Can anyone tell me about what to expect when I go to do my heart stress test and if there are any side effects of dipyridamole?

Yes, there is.: Your physician should tell you or give you some literature on the test, what to expect, what it tests. Dipyridamole is a medication that helps prevent thrombus formation or clot in the vessels, and may be used during stress testing (rare side effects). Stress testing usually is being hooked up to monitor, walking on treadmill while being monitored and instructed. Nuclear stress is with injection. ...Read more

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Heart patient (3 90% blockages 1 stent) Has RIGHT arm pain and fatigue a few hrs into his day. Nuclear stress test showed right side vdark. Ideas?

Concerned: I am concerned by the story presented. I assume the dark right side of the heart is an area not well perfused with blood. Nonetheless the patient needs to see the cardiologist as solo as possible. Symptoms are worrisome. Best wishes ...Read more

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Will a nuclear stress test make me radioactive? I’m having a nuclear stress test, and I need to know if it’s safe for me to babysit my grandkids after it? Will I be radioactive? Could I be dangerous to the kids?

Will a nuclear stress test make me radioactive? I’m having a nuclear stress test, and I need to know if it’s safe for me to babysit my grandkids after it? Will I be radioactive? Could I be dangerous to the kids?

You: You will be sufficiently radioactive to set off alarms at airports, ferry terminals, and border crossings. The sensitivity of these devices is high on purpose. However, the amount of radiation a patient emits after a cardiac nuclear scan is not considered dangerous to others. Notice that the technologists who perform these tests do not wear lead or other radiation protection and they are around "radioactive" patients every day. For the sake of completeness, however, I will add that pregnant women should not undergo this test and anyone who thinks they might be pregnant should have a pregnancy test before having any kind of radionuclide scan. ...Read more

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Nuclear cardiology stress test--how much radiaiton?

Nuclear cardiology stress test--how much radiaiton?

Radiation exposure: There most certainly is radiation exposure with nuclear cardiology stress testing whether it is with thallium, sestamibi, or any of the pet imaging agents. The exposure is minimal but real and the risk vs. Benefit to the patient needs to be considered before ordering the study. Pregnant women should not have these studies and young women can have a very small but increased risk of breast cancer. ...Read more

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What can you tell me about the cardiolite nuclear stress test?

What can you tell me about the cardiolite nuclear stress test?

Myocardial scan: A cardiac perfusion scan measures the amount of blood supplied to your heart muscle. Radiotracers such as thallium or technetium sestamibi (cardiolite) are injected intravenously and travel through blood to heart muscle.2 sets of images are made during rest and exercise and compared. Indications for this study include chest pain, previous heart attack, heart surgery and coronary artery disease ...Read more

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Just had a nuclear stress test done and I have a headache now is that normal?

Just had a nuclear stress test done and I have a headache now is that normal?

Lexiscan: The newer stress agent regadenoson (lexiscan) causes less headaches but some still do occur. Often you are told to have no caffeine for 24 hours prior to these tests and the caffeine withdrawal can also cause headache. ...Read more

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My cardiology order a nuclear stress test can you explain what is this thanks?

My cardiology order a nuclear stress test can you explain what is this thanks?

Stress test: A nuclear stress test detects blood supply to the heart. A radioactive tracer is injected into the veins at peak exercise or with a vasodilator. The tracer is taken up by the heart cells and the uprake is proportional to blood flow. By comparing uptake at rest versus exercise we can determine if blood flow is compromised. ...Read more

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Echo EF is 60 calculated, 55 visual estimate, and 63 on nuclear stress test. What's most accurate?

EF: All three of these numbers are reasonably close and normal. All methodologies have ranges of accuracy and error factors. In theory the nuclear method is the most accurate of these three but again technique can cause error. ...Read more

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How often can nuclear stress test be safely repeated, would doing two tests in 4 month be safe. Any radiations concerns.?

How often can nuclear stress test be safely repeated, would doing two tests in 4 month be safe. Any radiations concerns.?

No sig danger: The amount of radiation is pretty minimal. If its indicated, it should be fine but why repeat it after only 4 months? ...Read more

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I have had a ctscan. Hida scan and stress test all normal but still pain in middle chest. Right side. Is ef 89 normal for hida scan?

I have had a ctscan. Hida scan and stress test all normal but still pain in middle chest. Right side. Is ef 89 normal for hida scan?

Hyperkinetic gb: Most physicians in nuclear medicine and gastroenterology believe that increased ejection fraction of gall bladder is probably normal (above 35%). A well known nuclear physician reported small group of patients with hyperkinetic gall bladder (above 80% ejection fraction) getting relief with removal of gb. More studies needed to convince most surgeons. ...Read more

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If I'm too weak to do the exercise nuclear stress test next week will they do the injection kind? I'm worried I won't be able to. Haven't been eating.

Discuss with Cardio: If you are feeling more weak than prior to having the stress test scheduled, I would recommend you have a doctor examine you right away. It could be a sign of worsening health (possibly your heart). If this has been an ongoing concern, however, please consider discussing your limitations with the Cardiologist. They can inject you with "dipyridamole" which puts similar stress on your heart. ...Read more

Dr. TAPAN CHAUDHURI
109 Doctors shared insights

Nuclear Medicine (Definition)

The medical specialty of nuclear medicine involves the use of unsealed radioactive pharmaceuticals that can help image molecular flow throughout the body. The medical use of radiopharmaceuticals also includes the treatment of some cancers and bone pain. Nuclear medicine is separate from diagnostic radiology, which utilizes the use of external (sealed) radioactivity ...Read more


Dr. M. Hytham Beck
3 Doctors shared insights

Stress Test (Definition)

A stress test is a cardiac test which can include walking on a treadmill and monitoring your heart while you are walking. They can also inject you with a nuclear material and do a more comprehensive scan on your heart to check for blockage. They can also do a chemical stress test which omits the need to ...Read more