A 31-Year-Old Man Comes to the Emergency Department with a 2-Week

question 469

Multiple Choice

A 31-year-old man comes to the emergency department with a 2-week history of fever, night sweats, and productive cough.  He has also had a 5-kg (11-lb) weight loss.  He has no other medical problems.  The patient is a software engineer who moved to the United States from Uzbekistan 15 years ago.  He takes no medications and has no known drug allergies.  His temperature is 38.3 C (101 F) , blood pressure is 110/80 mm Hg, pulse is 94/min, and respirations are 18/min.  He weighs 60 kg (132.3 lb) .  Pulse oximetry shows 94% on room air.  Chest-x ray reveals a cavitary lesion on the right.  Sputum culture is obtained.  When exposed to drug A, isolates of the pathogen growing in culture quickly become less resistant to decoloration with an acid-alcohol agent and stop proliferating.  Which of the following is drug A most likely to be?

• A)Ciprofloxacin
• B)Isoniazid
• C)Rifampin
• D)Streptomycin
• E)Vancomycin

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Definitions:

Profit

The financial gain obtained when the amount earned from a business activity exceeds the expenses, costs, and taxes involved in sustaining the activity.

Selling Price

The amount at which an item or service is sold to the customer.

Outstanding Balance

The amount of money owed on a loan or credit account that has not yet been repaid.

Invoice

A document indicating a transaction between a buyer and a seller, listing the goods or services provided along with their prices and the total amount due.