A 65-Year-Old Man Is Brought to the Emergency Department After

question 549

Multiple Choice

A 65-year-old man is brought to the emergency department after a motor vehicle collision.  The patient was the restrained front passenger in a car that skidded on ice and hit a tree at 25 miles/hr.  His right leg was pinned under the dashboard, and extrication took 2 hours.  The patient has continued right leg pain, which is minimally relieved with morphine.  He had a myocardial infarction 6 months ago for which he takes aspirin and clopidogrel.  Blood pressure is 102/72 mm Hg and pulse is 111/min.  On physical examination, the patient is mildly sedated.  The right leg appears swollen, bruised, and shiny.  Sensation is intact.  Passive motion of the right ankle and toes causes pain.  Bilateral pedal pulses are palpable.  X-ray of the right lower extremity is negative for fracture.  Which of the following is the best next step in management of this patient's leg pain?

• A)Apply a compression wrap
• B)Measure leg compartment pressures
• C)Obtain a lower extremity arteriogram
• D)Order a CT scan of the lower extremity
• E)Perform lower extremity Doppler ultrasound
• F)Place the leg in balanced traction

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Definitions:

Three-Component Model

A model in psychology that views attitude as having cognitive, affective, and behavioral components.

Attitudes

Psychological tendencies expressed by evaluating particular entities with some degree of favor or disfavor, reflecting how individuals think, feel, and are inclined to act.

Information Integration Theory

The idea that a person’s attitude can be estimated by averaging across the positive and negative ratings of the object.

Cognitive Algebra

Approach to the study of impression formation that focuses on how people combine attributes that have valence into an overall positive or negative impression.