Case Study: John Attila has COPD caused by smoking for 50 years. His skin is gre

Question

Case Study: John Attila has COPD caused by smoking for 50 years. His skin is grey and he is short of breath when he gets up to go to the bathroom.

6. Respiratory rate and depth is regulated by two main clusters of chemoreceptors. Where are they and what are they measuring?
7. What happens to serum acid-base when a person has COPD?
8. What are the signs and symptoms of COPD?
9. John Attila has a 85% pulse oxygen level on 2 liters of nasal cannula oxygen. The MD tells you “Don’t turn it up any higher.” Why do we give low flow oxygen instead of high flow for COPD patients?

Explanation / Answer

6.) THE TWO CLUSTERS ARE
       1.Central Chemoreceptor- detects the change in pH
       2.Peripheral Chemoreceptor- detects the blood change like and CO_2 and not its pH

7) serum acid-base balance is lost and CO_2 release from blood is affected causing the change in the blood pH

8). Constant cough , short breath(when in heavy work or even walking) , septum production on large scale, sounding od wind pipe while breathing , tigthening of air pipe , cannot take a long deep breath , less stamina etc

9.) patients may further accumulate carbon dioxide and decrease in pH also will occur high blood carbon dioxide reduces respiratory drive to the point of precipitating respiratory failure, and eventual death.

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