An Upper Respiratory Tract Illness Led to the 81-Year-Old Man's

An upper respiratory tract illness led to the 81-year-old man's visit to the office. Except for a faint, ineffective cough that is especially annoying at night, his symptoms have mostly subsided. Osteoarthritis of the knee and hypertension are medical histories. The patient still plays golf on the weekends and is physically active. He has no known environmental exposures and is a retired insurance executive. He had never smoked before. The chest x-ray is normal, and the physical examination is uneventful. In this patient, pulmonary function testing is under consideration. Which of the following alterations is most likely anticipated in this patient as a result of normal aging in comparison to midlife?

A) A
B) B
C) C
D) D
E) E

Correct Answer:

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