Intermediate
Technical
IVT
exercise tolerance test
A diagnostic procedure that evaluates cardiovascular response to physical exertion, often used synonymously with exercise stress test.
Full Definition
An exercise tolerance test (ETT) assesses the heart's ability to respond to increased oxygen demands during physical activity. In cardiac rehabilitation settings, ETTs are performed to evaluate functional capacity, detect exercise-induced ischemia, assess arrhythmia risk, and guide exercise prescription. The test typically involves progressive exercise on a treadmill or cycle ergometer while monitoring heart rate, blood pressure, symptoms, and ECG changes.
Usage
Usage note: ETT may be used as abbreviation; ensure clarity when distinguished from other exercise testing modalities.
In Context
- "The exercise tolerance test revealed ST-segment changes at 7 METs, indicating exercise-induced ischemia." — Exercise test report
- "An exercise tolerance test is required before program entry for all moderate-to-high risk patients." — Program admission criteria
Also known as
ETT
exercise stress test
treadmill test
Contrasted with
resting ECG
Don't confuse with
graded exercise test
cardiopulmonary exercise test