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Doctor insights on: How Does Caffeine Affect The Results Of Thallium Myocardial Perfusion Scan

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How does caffeine affect the results of thallium myocardial perfusion scan?

How does caffeine affect the results of thallium myocardial perfusion scan?

False-negative: Caffeine can interfere with vasodilator pharmacologic stress testing, so your thallium myocardial perfusion scan might be normal even though you have cardiac perfusion problems. Best to hold caffeine for 48 hours prior to the test. You don't always know ahead of time whether an exercise stress test will work, so it is recommended that everyone hold caffeine for a couple of days prior to the study. ...Read more

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Caffeine Use (Definition)

Caffeine is a stimulant.Recently may have adopted extremely high levels of caffeine which may cause heart palpitations, especially with young people who buy it at the gas stations. This may be dangerous. A regular cup of coffee in am is ok, but not ...Read more


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Is it safe to smoke after a myocardial perfusion scan thallium scan cardiac nuclear imaging?

Is it safe to smoke after a myocardial perfusion scan thallium scan cardiac nuclear imaging?

Well...: Since you had a cardiac nuclear scan, I assume your doctors were looking for coronary artery disease. You seem to be a smoker, which makes artery disease worse. So smoking is not a good thing for you, and you should try to stop. Having said that, you are probably not in any more immediate risk for heart problem for smoking after the nuclear exam. Long term risks are greater with smoking. ...Read more

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Can you get results of your myocardial perfusion scan the same day?

Can you get results of your myocardial perfusion scan the same day?

Sometimes: It is possible but more often you will get your results the next business day. ...Read more

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Can I eat food before having myocardial perfusion scan?

Can I eat food before having myocardial perfusion scan?

No: No because the blood flow to stomach increased and it makes the image less accurate. ...Read more

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What is the definition or description of: myocardial perfusion scan with exercise?

What is the definition or description of: myocardial perfusion scan with exercise?

Cardiac Exam: Myocardial perfusion imaging looks at blood flow to the left ventricle. This is primarily accomplished using nuclear techniques such as pet or spect using radiotracers such as tl-201, tc-99m, or n-13 ammonia. When it is done with exercise, the myocardial perfusion scan shows blood flow during exercise, and usually compares that to perfusion at rest in order to evaluate for inducible ischemia. ...Read more

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Are there any medical complications from myocardial perfusion scan that would cause coughing?

No: The scan itself should not cause a cough. However, you may experience a cough after performance of a stress treadmill test (due to exercise induced asthma) or performance of pharmacologic stress (due to dilation of pulmonary vessels). ...Read more

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Are there any side affects after having a myocardial perfusion scan if so can you tell me please?

Are there any side affects after having a myocardial perfusion scan if so can you tell me please?

Radiation...: Depending on what radiotracer is used, you will be exposed to a small amount of radiation but the benefits of the test should outweigh the risks. Are you having pharmacologic or exercise test? Some of the pharmacologic agents can cause some side effects such as bronchoconstriction but a medication called aminophylline can usually be administered to reverse the side effects. ...Read more

Perfusion (Definition)

Perfusion usually refers to blood flow into an ...Read more