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What is All of the following findings during an exercise tolerance test is associated with left coronary aery disease except ? and explain in detail?
An Exercise Tolerance Test (ETT) is an Electrocardiogram (ECG) that is recorded while patient is exercising. A failure to increase SBP by 10 mm Hg, or a sustained decrease in SBP of 10 mm Hg or more, is suggestive of multivessel (or left main) CAD. Findings suggesting high probability of coronary aery disease: Horizontal ST segment depression of 2 mm Down sloping ST segment depression Persistence of ST depression for > 6 minutes into recovery ST segment depression in five or more leads persisting >=5 minutes into recovery. ST-segment elevation of >=1 mm in lead aVR may be a significant predictor of left main coronary aery disease.