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A cardiac stress test is a cardiological examination that evaluates the cardiovascular system's response to external stress within a controlled clinical setting. This stress response can be induced through physical exercise (usually a treadmill) or intravenous pharmacological stimulation of heart rate.
Master's two-step test [7] was often used, but it was too strenuous for many patients, and inadequate for the assessment of respiratory and circulatory function during varying amounts of exercise. To address these problems, Bruce and his colleagues began to develop a cardiac stress test.
Cardiac stress testing is used to determine to assess cardiac function and to disclose evidence of exertion-related cardiac hypoxia. Radionuclide testing using thallium or technetium can be used to demonstrate areas of perfusion abnormalities. With a maximal stress test the level of exercise is increased until the person's heart rate will not ...
He established guidelines in 1956 for the grouping of patients into New York Heart Association Functional Classification I through IV. [4] Bruce's early use of the treadmill for stress testing was a single-stage test at a fixed rate and fixed grade. [ 5 ]
A cardiac stress test, puts stress on the heart through exercise. A series of exercises to measure the tolerance for stress on the heart will be carried out. This test uses an EKG to detect the electrical impulses of the heart during physical exertion. [29] A treadmill or exercise bike will be used.
The Harvard step test, in scientific literature sometimes referred to as the Brouha Test, is a type of cardiac stress test for detecting and diagnosing cardiovascular disease. It is also a good measurement of fitness and a person's ability to recover after a strenuous exercise by checking the recovery rate.
It is the reference standard for the assessment of cardiac structure and function, [6] and is valuable for diagnosis and surgical planning in complex congenital heart disease. [7] Combined with vasodilator stress, it has a role in detecting and characterizing myocardial ischemia due to disease affecting the epicardial vessels and microvasculature.
A first test to be taken is an exercise stress test which shows if the heart is not getting blood during exertion. Angiograms may be useful and conclusive when microvascular angina they offer a detailed image of the heart. However, they cannot detect potential abnormalities in the small arteries, and the doctor may ask for more tests in order ...
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