What constitutes a positive exercise 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.
How many Mets is good on a stress test?
Exercise capacity is based on metabolic equivalents (MET) achieved, (one MET is defined as 3.5 mL O2 uptake/kg per min, which is the resting oxygen uptake in a sitting position). Less than 5 METS is poor, 5–8 METS is fair, 9–11 METS is good, and 12 METS or more is excellent.
What is a positive exercise tolerance test?
The primary finding resulting in a “positive” exercise tolerance test is ST depression on the ECG monitor. A test is considered positive when one or more cardiac leads shows ST depression of 1 mm or greater.
How do you read TMT results?
The Selzer criteria that is used in analyzing TMT divide the results into mildly positive, moderately positive and strongly positive. Mildly positive : horizontal ST depression of 1 to 1.5 mm and slowly rising junctional depression, which remains depressed 1.5 mm or more than 80 ms after the J point.
Is a positive stress test good?
A positive exercise test result is a better predictor of the subsequent development of angina than the occurrence of a major event is. Even when subsequent angina is considered an event, a minority of patients with a positive test result experience cardiac events.
How are METs scores calculated?
The formula to use is: METs x 3.5 x (your body weight in kilograms) / 200 = calories burned per minute. For example, say you weigh 160 pounds (approximately 73 kg) and you play singles tennis, which has a MET value of 8. The formula would work as follows: 8 x 3.5 x 73 / 200 = 10.2 calories per minute.
What is a good MET score?
Any score below 7 should trigger concern. A score of 10 is good. Some occupations, such as firefighting, are best performed by those with a MET score of 12 or higher. If you are not happy with your MET score, your doctor can help you figure out how to improve your exercise habits.
What is the meaning of TMT test positive?
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.
What happens if ETT is positive?
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 mildly positive TMT?
Mildly positive TMT means that there might be a blockage in the blood supply to the heart. And when the patient is running or climbing stairs or during exertion stress the heart is not getting suffic Read More.