A Study Investigates the Prevalence of Ischemia in 512 Patients

question 341

Multiple Choice

A study investigates the prevalence of ischemia in 512 patients with chest pain undergoing stress testing.  Only patients with negative cardiac enzymes and nondiagnostic electrocardiogram changes are included.  Myocardial perfusion imaging for ischemia and coronary artery calcification (CAC) score are obtained for each participant.  The following results are reported: Which of the following best describes the study design?

• A)Case-control study
• B)Case series
• C)Cross-sectional study
• D)Prospective cohort study
• E)Randomized clinical trial

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