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Dr.Bernon, Doctor (MD)
Category: Health
Satisfied Customers: 676
Experience:  Internal Medicine and Pediatrics
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What is a chemical stress test?

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what is a chemical stress test?

A chemical stress test is used to study the heart are how well the coronary arteries are perfusing it. Instead of doing an exercise stress test on a treadmill, a chemical (usually adenosine or dobutamine) is injected into your veins while you are lying down, in order to speed up your heart rate. Then, a radiolabeled tracer substance is injected that shows how well the heart is perfused.


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Customer: replied 9 years ago.
is this dangerous

The test is not especially dangerous since it is performed in a very controlled setting with a cardiologist present and extensive monitoring. However, since the heart rate is being elevated, there is always a small risk of stressing it too much, leading to potential complications (arrythmia, heart attack etc...). Also, adenosine can sometimes cause asthma attacks in patients who are predisposed to it (smokers, asthmatics).