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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.

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.

Body Structures & Functions
Body Structures & Functions
12th Edition
ISBN:9781285695495
Author:Scott
Publisher:Scott
Chapter17: Respiratory System
Section: Chapter Questions
Problem 1M
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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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