Ali, aged 28, normally does not suffer from asthma. However, he has an asthma attack at his work. The doctor recommends that Andrew does some pulmonary function tests to confirm his diagnosis.  Part A. Explain what will happen to resistance in the airways, and how it will affect airflow during Andrew’s asthma attack. Part B. Compared to a normal FEV1/FVC ratio, what do you expect will happen to Andrew’s FEV1/FVC ratio? Explain why this occurs.    Part C. Andrew has another more serious asthma attack that causes hypoventilation. Explain what effect this will have on pH, and what serious consequence could occur if left untreated.

Basic Clinical Lab Competencies for Respiratory Care: An Integrated Approach
5th Edition
ISBN:9781285244662
Author:White
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Chapter28: Weaning And Discontinuation Of Mechanical Ventilation
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Ali, aged 28, normally does not suffer from asthma. However, he has an asthma attack at his work. The doctor recommends that Andrew does some pulmonary function tests to confirm his diagnosis. 

Part A. Explain what will happen to resistance in the airways, and how it will affect airflow during Andrew’s asthma attack.

Part B. Compared to a normal FEV1/FVC ratio, what do you expect will happen to Andrew’s FEV1/FVC ratio? Explain why this occurs. 

 

Part C. Andrew has another more serious asthma attack that causes hypoventilation. Explain what effect this will have on pH, and what serious consequence could occur if left untreated. 

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