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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 moreSee 2 more doctor answers
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 moreSee 2 more doctor answers
Yes: Yes.Get a more detailed answer ›
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 moreSee 2 more doctor answers
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
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