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WorksheetsChapter 17 Diagnostic Electrocardiography
Total questions: 20
Worksheet time: 10mins
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.
The J-point is the point at which the
P wave and PR segment join together.
PR segment and QRS complex join together.
QRS complex and ST segment join together.
ST segment and T wave join together.
How much must a coronary artery be narrowed for the stress test to be positive?
35%
60%
75%
90%
Thallium-201 enters the heart in much the same way as which ion?
Sodium
Magnesium
Chloride
Potassium
The sensitivity of a stress test represents the number of patients with
proven coronary artery disease who tested positive on the stress test.
normal coronary arteries who tested positive on the stress test.
proven coronary artery disease who tested negative on the stress test.
normal coronary arteries who tested negative on the stress test.
The specificity of a stress test represents the number of patients with
proven coronary artery disease who tested positive on the stress test.
normal coronary arteries who tested positive on the stress test.
proven coronary artery disease who tested negative on the stress test.
normal coronary arteries who tested negative on the stress test.
Bayes' theorem has to do with
the sensitivity and specificity of the stress test results.
which patients will be predicted to complete the maximal stress test.
the predicted cardiac output during exercise stress testing.
the predicted workload of a treadmill versus a bicycle stress test.
A positive stress test implies that
ischemia is present.
ischemia is absent.
infarction is present.
infarction is absent.
If the stress test is positive but an angiogram reveals normal coronary arteries, the stress test is said to have been a
true positive.
false positive.
true negative.
false negative.
If the stress test is positive and an angiogram reveals coronary artery disease, the stress test is said to have been a
true positive.
false positive.
true negative.
false negative.
If the stress test is negative and the angiogram reveals normal coronary arteries, the stress test is said to have been a
true positive.
false positive.
true negative.
false negative.
