Chapter 17 Diagnostic Electrocardiography

Which of the following is an absolute contraindication to stress testing?

• Myocardial infarction less than 48 hours old

• Mild to moderate aortic stenosis

• Uncontrolled tachyarrhythmias or bradyarrhythmias

• Electrolyte abnormalities

A relative contraindication is one that means

• don't do the test under any circumstances.

• don't do the test unless the benefits outweigh the risks.

• do the test as soon as possible.

• do the test only if the patient's other relatives have had the same problem also.

Which of the following is NOT an indication for stress testing?

• To diagnose coronary artery disease

• To evaluate patients with symptoms of exercise-induced arrhythmias

• To evaluate patients after coronary bypass surgery

• To evaluate asymptomatic individuals with no CAD risk factors

Which of the following is an indication for stress testing?

• To evaluate asymptomatic individuals with no CAD risk factors

• To evaluate individuals with noncardiac chest discomfort

• To evaluate individuals with severe aortic stenosis

• To evaluate the prognosis and functional capacity after an MI

Which of the following is a relative contraindication to stress testing?

• Known left main coronary artery disease

• Acute pulmonary embolus

• MI less than 48 hours old

• Symptomatic severe aortic stenosis

A MET is a

• measurement of energy absorption during exercise.

• measurement of oxygen consumption during exercise.

• method of exercise.

• pharmacologic agent used in stress testing.

13 METs is

• the oxygen consumption of a person sitting down resting.

• The level most adults can reach with exertion.

• the level at which cardiac arrest occurs.

• almost always associated with significant cardiac ischemia.

The target heart rate for a 60-year-old man having a stress test is

• 280.

• 160.

• 190.

• 220.

For submaximal testing, what percentage of the target heart rate must be attained?

• 65%

• 85%

• 70%

• 100%

The inability of the heart to increase its rate adequately with exercise is called

• inotropic reserve.

• chronotropic reserve.

• inotropic incompetence.

• chronotropic incompetence.