Average total cost, sometimes referred to as the per unit total cost, is the per unit cost. This includes fixed costs, those costs that are required for production but do not change based on output, and variable costs, those costs that increase (or decrease) as output increases (or decreases).
Stress Testing/Stress Echocardiogram A stress echocardiogram is a non-invasive test that combines two tests--a treadmill stress test (TST) and an echocardiogram (ECHO). This test is used to see how the heart muscle contracts during rest and during exercise. A stress echo is made up of three parts: a resting echo study, a stress test, and a repeat echo while the heart is beating fast.
An imaging stress test costs between $500 and $2,000, compared with $200 to $300 for an ECG treadmill test. Since imaging tests can provide more information, they may be worth it. But money spent on inappropriate tests is money wasted, especially when they lead to more unÂ­necessary tests and further expense.