A 60-Year-Old Man Is Brought to the Emergency Department Due

A 60-year-old man is brought to the emergency department due to altered mental status.  His wife says that he had a nagging cough that seemed to worsen over the past several months and that he began experiencing occasional dizziness earlier this week.  Over the last couple of days, the patient has become increasingly confused, and today he "does not make any sense at all."  He has no significant past medical history but has smoked a pack of cigarettes daily for the last 40 years.  On physical examination, the patient is incoherent but has an otherwise normal neurologic examination.Laboratory results are as follows: Chest x-ray reveals a mass in the right lung.  Which of the following additional findings is most likely to be present in this patient?

A) Bilateral crackles at the lung bases
B) Elevated jugular venous pressure
C) Maximally dilute urine
D) Apparent euvolemia
E) Peripheral edema

Correct Answer:

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