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A 35-year-old member asked:

Can you describe a dobutamine stress test?

3 doctor answers6 doctors weighed in
Dr. Mark Stern
Cardiology 46 years experience
IV Chemical Stress: An intravenous is started . A radioactive substance is given and a picture of the heart muscle at rest is taken. Then Dobutamine is dripped in to increase the heart rate ( instead of walking on a treadmill) . Then another picture is taken of the heart muscle. The pictures are compared. The pictures look like donuts. If there is a bite out of the donut , that means less or no blood is going there.
Dr. Milton Alvis, jr
Preventive Medicine 41 years experience
Chemical "Stress": Stimulant dobutamine, injected by IV drip to ↑ heart muscle intensity & rate of contraction, in place of walking. The ↑ed intensity & BP is the stress. Radioactive isotope is injected iv, heart muscle cells pump the isotope inside semi-proportional to cell health & blood flow. A radiation camera detects some of the radiation exiting the body. Only severe, not mild, artery disease can be detected.
Dr. Gerald Mandell
Nuclear Medicine 52 years experience
Drug induced stress: If exercise on a treadmill is not an option (too much stress on the heart) due to a person’s medical condition, may use an intravenous medication called dobutamine. Dobutamine causes heart to beat faster and will mimic the effects of exercise on the heart. Stress tests usually can be nuclear with radiotracer or with echocardiography.

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A 25-year-old member asked:

How likely am I to panic while having a dobutamine stress test?

2 doctor answers4 doctors weighed in
Dr. Bart Denys
Cardiology 39 years experience
Panic stress test: My dearest...Probably not more likely than during any other test... Panick attacks are a personal response to a trigger, consciously or not. If you are well instructed/educated about the test, it should lower pre test anxiety. Understand that Dobutamine will increase heart rate and may be perceived as a "stronger" heart beat. Talk to your doctor about your concerns. Good luck! go for it :-).

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Last updated Apr 6, 2015

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