A68-Year-Old Man Is Brought to the Emergency Department by Because

A68-year-old man is brought to the emergency department by because of worsening confusion for the past week. 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. He has a history of an ischemic stroke 4 months ago. Current medications are aspirin. He is lethargic and disoriented. His pulse is 78/min, and blood pressure is 135/88 mm Hg. Physical examination shows moist oral mucosa, normal skin turgor, and no peripheral edema. 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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