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).
The basic stress test involves walking on a treadmill while your electrocardiogram (EKG) is continuously monitored for changes that may indicate a blocked artery to the heart. However, there are options if you are unable to walk on a treadmill or if your EKG is already abnormal at rest. The existing options include: imaging stress tests -- echocardiographic or nuclear -- and pharmacologic stress tests -- adenosine and dobutamine.
What Is a Signal-Averaged Electrocardiogram? An electrocardiogram (also called EKG or ECG) is a test that records the electrical activity of your heart through small electrode patches attached to the skin of your chest, arms, and legs. An EKG may be part of a routine physical exam or it may be used as a test for heart disease. An EKG can be used to further investigate symptoms related to heart problems. EKGs are quick, safe, painless, and inexpensive tests that are routinely performed if a heart condition is suspected.