A 62-Year-Old Man with a History of Dyslipidemia and Type

question 152

Multiple Choice

A 62-year-old man with a history of dyslipidemia and type 2 diabetes mellitus comes to the emergency department due to severe substernal chest pain and diaphoresis that began 2 hours ago.  His ECG shows ST- segment elevation in leads V1 to V4.  He is taken to the cardiac catheterization lab and a complete occlusion of the mid-left anterior descending artery (LAD) is diagnosed.  A drug-eluting stent is placed in the LAD with complete restoration of flow, and the patient is started on aspirin and clopidogrel.  On the third day of hospitalization, the option of adding rivaroxaban is discussed with the patient.  He asks about the benefits and risks of the added therapy.  Based on the research abstract, The statistical methods section of the full research paper indicates that the analysis was performed using an "intention-to-treat" approach.  The primary purpose of such an approach is most likely which of the following?

• A)Decrease the placebo effect
• B)Eliminate observer bias
• C)Enhance external validity
• D)Preserve randomization
• E)Reduce type II errors

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Definitions:

Physiological Component

The aspects of psychological experience that are rooted in physical processes of the body, such as heart rate or hormone levels.

Mystery Novel

A genre of fiction that involves the solving of a mystery, typically involving a crime or a puzzling situation.

Achievement Motivation

The drive to pursue and meet (often challenging) goals, based on the desire to achieve success and excel.

Intermediate Difficulty

A level of challenge that is neither too hard nor too easy, often considered optimal for learning and engagement.