Which of the following statements regarding exercise testing is accurate?

1. High specificity is the real value of exercise testing in diagnosing CAD.
2. The ability of the test to detect individuals with CAD ranges from 20% to 35%.
3. The test will be positive in 77% to 90% of individuals who do not have CAD.
4. A low pretest probability increases the chances of a positive exercise test.


High specificity is the real value of exercise testing in diagnosing CAD.

Rationale: High specificity is the real value of exercise testing in diagnosing CAD. The ability of the test to detect individuals with CAD (sensitivity) ranges from 50% to 75%. The test will be negative in 77% to 90% of individuals who do not have CAD. The most important factor affecting the results is the estimation of pretest probability; therefore, the higher the pretest probability for CAD, the greater the chance of positive results.

Nursing

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