Explore the intricacies of respiratory acidosis in this 21-minute lecture, covering its differential diagnosis and the physiology behind ventilation control. Delve into the general mechanisms of respiratory disorders, understand the alveolar ventilation equation, and examine various etiologies including COPD, drug overdose, obesity hypoventilation syndrome, and Ondine's Curse. Learn to interpret arterial blood gas (ABG) results and gain valuable insights into this critical aspect of respiratory medicine.