Exercise 7: Respiratory System Mechanics: Activity 2: Comparative Spirometry Lab Report Pre-lab Quiz Results You scored 100% by answering 5 out of 5 questions correctly. 1. A normal resting tidal volume is expected to be around You correctly answered: d. 500 ml. 2. Which respiratory process is impaired the most by emphysema? You correctly answered: c. expiration 3. During an asthma attack You correctly answered: b. inspiration and expiration are impaired. 4. During moderate aerobic exercise, which respiratory variable increases the most? You correctly answered: a. tidal volume 5. Inhaler medications for an asthma patient are designed to You correctly answered: b. dilate the patient's bronchioles.

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4. How is having an acute asthma attack similar to having emphysema? How is it different? Your answer: Both cases air ways are constricted and pinched close before force expiration is completed.However unlike emphysema elastic recoil of lung is not diminished during an asthma attack

5. Describe the effect that the inhaler medication had on the asthmatic patient. Did all spirogram values return to "normal"? Why do you think some values did not return all the way to normal? How well did the results compare with your prediction? Your answer: Asthma medication cause smooth muscle phasam to relax, thus increasing air way diameter therefore it is much easier for greater percentage of gases to be expled in one second uponapplication of inhaler TV, ERV, FEV1% increased to normal levels IRV, RV increased above normallevels and FVC and FEV1 increase increased to slightly below normal level. Despite theMedication allowing for greater air movement the patient is asthemic because the lateral value will never reach normal 6. How much of an increase in FEV1 do you think is required for it to be considered significantly improved by the medication? Your answer: To be considered significantly improved by medication, you should see increase in FEV 1% from 40 to above 80 % which is normal level 7. With moderate aerobic exercise, which changed more from normal breathing, the ERV or the IRV? How well did the results compare with your prediction? Your answer: With moderate aerobic exercise