A 64-Year-Old Man Comes to the Emergency Department Due to Chest

question 47

Multiple Choice

A 64-year-old man comes to the emergency department due to chest discomfort and shortness of breath.  Medical history includes hypertension, type 2 diabetes mellitus, and severe osteoarthritis of the left knee.  The patient is an active smoker with a 20-pack-year smoking history.  He undergoes dobutamine infusion with simultaneous cardiac imaging.  The following is seen:Before infusion: normal left ventricular contractility, ejection fraction 60%During infusion: decreased apical contractility, ejection fraction 45%Five minutes after infusion: normal left ventricular contractility, ejection fraction 60%Which of the following best explains the observed findings?

• A)Coronary artery occlusion due to plaque thrombosis
• B)Coronary artery vasospasm
• C)Focal myocardial fibrosis
• D)Normal myocardial contractile response
• E)Supply-demand mismatch due to fixed coronary stenosis

Understand the role of the Barbary Wars in shaping U.S. foreign policy.

Evaluate the decline of the Federalist Party and the political climate of the era.

Assess the outcomes and long-term impacts of the War of 1812 on America.

Understand the major causes and outcomes of the War of 1812.

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Definitions:

Chromatic Abstractionism

An artistic movement that focuses on the use of intense colors in abstract works, often to evoke emotions or express non-objective realities.

Color Fields

A style of abstract painting characterized by large, solid colors spread across or within a canvas, emphasizing the overall impact of color.

Zips

Elements frequently used in the paintings of Barnett Newman, consisting of vertical lines or "zips" that divide the canvas into sections and introduce a dynamic interplay of space.

Performance Art

An art form that combines visual art with dramatic performance, often emphasizing the artist's action as the medium.