An overweight 75-year-old female is short of breath and cyanotic. She has smoked heavily most of her life. You note rhonchi and JVD. What condition should you suspect?

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Chronic bronchitis fits this presentation because long-term smoking commonly leads to a COPD phenotype characterized by a productive cough with mucus production, chronic hypoxemia causing cyanosis, and signs of right-sided heart strain such as JVD. The rhonchi reflect mucus in the airways, and the overweight, older patient with ongoing dyspnea and cyanosis aligns with the “blue bloater” pattern often seen in chronic bronchitis. Emphysema tends to present with weight loss and a pinker appearance due to less overt hypoxemia early on, not the cyanosis described. Asthma usually involves episodic wheezing and occurs earlier in life, while a pulmonary embolism presents acutely with sudden chest pain and tachycardia rather than a chronic mucus-producing cough and JVD.