A 56-Year-Old Man Comes to the Office Due to Progressively

question 373

Multiple Choice

A 56-year-old man comes to the office due to progressively worsening fatigue, difficulty concentrating, and increasing forgetfulness over the past several weeks.  In addition, the patient has had vague abdominal pain and constipation and has gained 2.7 kg (6 lb) unintentionally over the last 3 months.  Medical history is significant for hypertension, nonischemic cardiomyopathy with left ventricular systolic dysfunction, and atrial fibrillation.  Blood pressure is 140/90 mm Hg and pulse is 75/min.  Physical examination reveals regular heart sounds with normal S1 and S2.  The lungs are clear to auscultation.  There is no lower extremity edema, and the skin appears dry.  Laboratory studies are as follows: Which of the following medications is most likely responsible for this patient's current symptoms?

• A)Amiodarone
• B)Digoxin
• C)Dofetilide
• D)Hydralazine
• E)Metoprolol
• F)Verapamil

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Definitions:

Primitive Earth

Refers to the Earth's condition in its earliest stages, characterized by a hot, molten surface and the absence of life.

Miller And Urey

Scientists known for their experiment demonstrating that organic compounds essential for life could be formed from inorganic components under conditions thought to mimic those of early Earth.

Organic Compounds

Chemical compounds made up of carbon atoms bonded to other elements, integral to living organisms.