Mr. B has suffered from chronic advanced emphysema for 15 years. While hospitalized with a respiratory infection, he goes into respiratory distress.

HISTORY

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Mr. B has suffered from chronic advanced emphysema for 15 years. While hospitalized with a respiratory infection, he goes into respiratory distress. Without thinking, his nurse immediately administers pure oxygen, which causes Mr. B to stop breathing.

QUESTIONS

9. Emphysema affects which body organ?

10. What specific part of this organ is affected by emphysema? T

11. What is the major respiratory symptom of emphysema?

12. Would the level of oxygen in Mr. B’s blood be increased or decreased with this disease?

13. Would the level of carbon dioxide in Mr. B’s blood be increased or decreased with this disease?

14. Which of the respiratory gases is Mr. B’s major stimulus to breathe?

15. Why did Mr. B stop breathing when the nurse administered pure oxygen?