A client is scheduled to have a graded exercise test. The nurse explains to the client that the test will determine how:
1. Well he thinks under pressure.
2. Well his body reacts to controlled exercise stress.
3. Far he can walk.
4. Long he can walk.
Graded exercise testing is a diagnostic and prognostic tool used to determine the physiologic responses to controlled exercise stress. Information gained from a graded exercise test can achieve diagnostic, functional, and therapeutic objectives for the client. Graded exercise tests involve the use of a treadmill, stationary bicycle, or arm ergometry. Thinking under pressure, distance walked, and duration of walking are not the purpose of a graded exercise test. CN: Reduction of risk potential; CL: Apply