What does positive ETT mean?
If one or more of your coronary arteries are narrowed, part or parts of the heart muscle do not get enough oxygen. This can cause the ECG tracing to become abnormal when you exercise. Therefore, if you have a positive ETT (an abnormal reading) you are likely to have coronary heart disease.
What is the normal exercise tolerance?
A level of up to 225 mm Hg is normal in adults, although athletes can have higher levels. Diastolic blood pressure tends to fall slightly. The aim of the exercise is for the patient to achieve their maximum predicted heart rate.
What does fair exercise tolerance mean?
Exercise tolerance refers to the exercise capacity of an individual as measured by their ability to endure exercise and/or the maximum workload achieved during the exercise period. Exercise tolerance can be measured accurately during an exercise tolerance test.
What does it mean to have a positive stress test?
Positive or abnormal: Doctors may conclude the stress test is positive for cardiac ischemia—meaning the heart muscle wasn’t getting adequate oxygenated blood during the stress. There are certain ECG and imaging changes that would support this conclusion.
What does a negative ETT mean?
ETT has been quoted as having a sensitivity of 78% and a specificity of 70% in detecting coronary artery disease (CAD). Thus, a negative test may not necessarily be true and further testing or advice may be warranted. Diagnostic accuracy is also poor in women and this may relate to smaller heart size.
What is poor exercise tolerance?
Exercise intolerance is the reduced ability of the heart to perform activities that involve strenuous movement of your body. It happens when your responses to exercise don’t achieve age and gender-appropriate levels. It’s associated with heart disease because the heart fails to pump blood properly when exercising.
How do you measure exercise tolerance?
An exercise tolerance test (ETT) is a good way to see how your heart behaves during exercise. A nurse will use an electrocardiograph (ECG) to monitor your heart’s activity and see how your blood pressure and pulse change during the test. What happens? The entire appointment takes about 30 to 40 minutes.
What if my stress test is abnormal?
Abnormal results may be due to: Reduced blood flow to a part of the heart. The most likely cause is a narrowing or blockage of one or more of the arteries that supply your heart muscle. Scarring of the heart muscle due to a previous heart attack.
What if TMT test is positive?
What does positive and negative test mean? Positive test means patients ECG is showing changes of angina (lack of adequate blood supply to heart) after workload. It means patient is suffering from ischemic heart disease.