COPD vs Asthma: The Distinction the USMLE Loves

Same wheeze, same obstructive spirometry — opposite philosophies. This episode measures the gap: bronchodilator reversibility, blue bloaters versus pink puffers, alpha-1 antitrypsin deficiency hiding in the young, steroids-first versus bronchodilators-first, controlled oxygen at 88–92%, and the single test result that separates the diseases better than any other: the DLCO, preserved when the airways are the problem and destroyed when the walls themselves are gone.

⏱ Chapters:
0:00 Two patients, one wheeze
0:35 The shared silhouette
1:30 Asthma
2:33 COPD: two pockets
3:45 Alpha-1 antitrypsin
4:36 Treatment philosophies
5:37 Oxygen: a drug with a ceiling
6:30 Exacerbations

Educational content only: exam concepts, not medical advice; management follows current GOLD/GINA guidance. Stock footage: Pexels (Pexels Licence). Comparison diagrams drawn for this video. Narration: AI-generated voice (Helio) with human-written script — contains AI-generated audio.

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