PhysioEx Exercise 7 Activity 2

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10/16/23, 11:12 AM PhysioEx Exercise 7 Activity 2 https://media.pearsoncmg.com/bc/bc_0media_ap/physioex/10/ex7/act2/ 1/7 PhysioEx Lab Report Exercise 7: Respiratory System Mechanics Activity 2: Comparative Spirometry Name: Nicole Fohrman Date: 16 October 2023 Session ID: session-8745cdf0-f2c3-50f0-7531-deef5759c64a Pre-lab Quiz Results You scored 100% by answering 5 out of 5 questions correctly. Experiment Results Predict Questions A normal resting tidal volume is expected to be around You correctly answered: 500 ml. 1 Which respiratory process is impaired the most by emphysema? You correctly answered: expiration. 2 During an asthma attack You correctly answered: inspiration and expiration are impaired. 3 During moderate aerobic exercise, which respiratory variable increases the most? You correctly answered: tidal volume. 4 Inhaler medications for an asthma patient are designed to You correctly answered: dilate the patient's bronchioles. 5 Predict Question 1: With emphysema, there is a significant loss of elastic recoil in the lung tissue and a noticeable, exhausting muscular effort is required for each expiration. Inspiration actually becomes easier because the lung is now overly compliant. Using the spirogram, calculate the lung value most affected by the emphysema condition. Your answer: FEV . 1 1 Predict Question 2: During an acute asthma attack, airway resistance is significantly increased by (1) increased thick mucous secretions and (2) airway smooth muscle spasms. 2

10/16/23, 11:12 AM PhysioEx Exercise 7 Activity 2 https://media.pearsoncmg.com/bc/bc_0media_ap/physioex/10/ex7/act2/ 2/7 Stop & Think Questions To which lung value in the spirogram would you see the greatest change in a patient suffering from an acute asthma attack? Your answer: FEV . 1 Predict Question 3: When an acute asthma attack occurs, many people seek relief from the increased airway resistance by using an inhaler. This device atomizes the medication and induces bronchiole dilation (though it can also contain an anti-inﬂammatory agent). Which lung value remained relatively unchanged when comparing a patient with an acute asthma attack, acute asthma attack with inhaler, and normal? Your answer: RV. 3 Predict Question 4: During moderate aerobic exercise, the human body will change its respiratory cycle in order to meet increased metabolic demands. During heavy exercise, further changes in respiration are required to meet the extreme metabolic demands of the body. Which lung value will change more during moderate exercise, the ERV or the IRV? Your answer: IRV. 4 When obstructive lung disease develops, what happens to the FEV (%)? You correctly answered: It decreases. 1 1 Compared with the normal patient, what happened to the FVC in this patient? You correctly answered: It decreased. 2 Compared with the normal patient, what happened to the FEV in this patient? You correctly answered: It decreased. 3 1 Compared with the normal patient, what happened to the FVC in this patient? You correctly answered: It decreased. 4 Compared with the normal patient, what happened to the FEV in this patient? You correctly answered: It decreased. 5 1 Which value in the spirogram never changed from that of the normal patient? 6

10/16/23, 11:12 AM PhysioEx Exercise 7 Activity 2 https://media.pearsoncmg.com/bc/bc_0media_ap/physioex/10/ex7/act2/ 3/7 Experiment Data Patient Type TV ERV IRV RV FVC TLC FEV FEV (%) Heavy Exercise 3650 750 600 1000 ND 6000 ND ND Moderate Exercise 1875 1125 2000 1000 ND 6000 ND ND Asthma Attack Plus Inhaler 500 1500 2800 1200 4800 6000 3840 80% Acute Asthma Attack 300 750 2700 2250 3750 6000 1500 40% Emphysema 500 750 2000 2750 3250 6000 1625 50% Normal 500 1500 3000 1000 5000 6000 4000 80% You correctly answered: TLC. For both types of exercise, the tidal volumes and breathing rates were increased. Compared with normal values, did tidal volume or breathing rate increase more during moderate exercise? (Determine the percentage by which each value changed.) You correctly answered: tidal volume. 7 1 1 Normal

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