A 66-Year-Old, Right-Handed Man Is Brought to the Emergency Department

question 11

Multiple Choice

A 66-year-old, right-handed man is brought to the emergency department due to left-sided numbness and weakness.  The patient woke with left-hand clumsiness that rapidly progressed to profound left-sided weakness, affecting the left arm more than the left leg.  He has a history of hypertension and has smoked a pack of cigarettes daily for the past 40 years.  Blood pressure is 175/90 mm Hg and pulse is 82/min and regular.  Neurologic examination reveals impaired touch discrimination in the left arm with left facial weakness sparing the forehead, 2/5 muscle strength in the left upper limb, and 4/5 muscle strength in the left lower limb.  Right-sided strength and visual field examinations are normal.  Which of the following labeled arteries is most likely occluded in this patient?

• A)A
• B)B
• C)C
• D)D
• E)E
• F)F
• G)G
• H)H
• I)I

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Definitions:

Overhead Costs

Expenses related to the day-to-day operations of a business that are not directly tied to the production of goods or services, such as rent, utilities, and administrative salaries.

Equipment Depreciation

The process of spreading out the cost of physical assets over their useful lives for accounting and tax purposes.

Supervisory Expense

Costs associated with the salaries and benefits of supervisory staff, including managers and team leaders.

Activity-Based Costing

A costing methodology that assigns overhead and indirect costs to specific activities, thereby providing more accurate product costing and profitability analysis.