Chronic obstructive pulmonary disease Quiz: Ace Your Exams

Get ready to dominate your medical and nursing exams by using our dynamic quizzes to elevate your knowledge and increase your confidence. Whether you're gearing up for the USMLE®, COMLEX®, or your next in-class assessment, Osmosis quizzes tackle key topics in pathology, diagnostics, and treatment approaches. By honing in on clinical readiness and decision-making, we make sure the knowledge you gain empowers you both in the classroom and in real-world practice. Jump in and supercharge your exam prep!

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A 52-year-old man presents to the primary care clinic with a 3-month history of wheezing and shortness of breath that is worsened with exertion. The patient reports frequent coughing episodes that last for several seconds. He denies fever, chest pain, or weight loss. Past medical history is significant for gastroesophageal reflux disease. He has a 30-pack-year smoking history. Temperature is 36.8°C (98.2°F), blood pressure is 135/77 mmHg, pulse is 88/min, respiratory rate is 22/min, and oxygen saturation is 95% on room air. Physical examination is significant for mildly increased anterior-posterior chest diameter, diminished breath sounds bilaterally, and expiratory wheezing. A chest X-ray reveals hyperinflated lung fields with flattening of the diaphragm and an incidental 0.8 cm nodule in the right upper lobe. Which of the following findings will most likely be seen on this patient's pulmonary function testing?

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Decreased total lung capacity (TLC) with decreased diffusion capacity of the lung for carbon monoxide (DLCO)

Decreased forced expiratory volume in 1 second (FEV₁) to forced vital capacity (FVC) ratio with minimal reversibility after bronchodilator administration

Decreased total lung capacity (TLC) with normal diffusion capacity of the lung for carbon monoxide (DLCO)

Decreased forced expiratory volume in 1 second (FEV₁) to forced vital capacity (FVC) ratio with reversibility after bronchodilator administration

Normal forced expiratory volume in 1 second (FEV₁) to forced vital capacity (FVC) ratio with normal residual volume (RV)