Which statement applies to paroxysmal nocturnal dyspnea? A) It indicates decreased CO₂ diffusion in the lungs. B) It indicates swelling in the bronchioles and bronchi. C) It is caused by increased blood in the lungs when lying in a supine position. D) It results from pleural effusion.

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Quizplus · Accepted Answer

Paroxysmal nocturnal dyspnea is caused by increased blood volume in the lungs when lying down, leading to pulmonary congestion and difficulty breathing.

Which Statement Applies to Paroxysmal Nocturnal Dyspnea