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Physio Ex Exercise 7 Activity 2
Human Physiology Lab (BIOL 240)
Indiana University of Pennsylvania
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PhysioEx Lab Report
Exercise 7: Respiratory System Mechanics Activity 2: Comparative Spirometry Name: Kaelyn Wozniak Date: 19 October 2020 Session ID: session-766c4aa8-941f-f423-2859-67a793d
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.
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Which respiratory process is impaired the most by emphysema? You correctly answered: expiration.
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During an asthma attack You correctly answered: inspiration and expiration are impaired.
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During moderate aerobic exercise, which respiratory variable increases the most? You correctly answered: tidal volume.
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Inhaler medications for an asthma patient are designed to You correctly answered: dilate the patient's bronchioles.
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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.
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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.
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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.
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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.
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When obstructive lung disease develops, what happens to the FEV (%)? You correctly answered: It decreases.
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Compared with the normal patient, what happened to the FVC in this patient? You correctly answered: It decreased.
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Compared with the normal patient, what happened to the FEV in this patient? You correctly answered: It decreased.
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Compared with the normal patient, what happened to the FVC in this patient? You correctly answered: It decreased.
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Compared with the normal patient, what happened to the FEV in this patient? You correctly answered: It decreased.
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6 Which value in the spirogram never changed from that of the normal patient? i
Acute Asthma Attack
Asthma Attack Plus Inhaler
Moderate Exercise
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Post-lab Quiz Results
You scored 100% by answering 5 out of 5 questions correctly.
Heavy Exercise
Which of the following respiratory values represents a decreased flow rate during the obstructive lung disease(s)? You correctly answered: FEV.
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1 Calculate the ERV of an individual with the following respiratory volumes: TLC = 6000 ml, FVC = 4800 ml, RV = 1200 ml, IRV = 2900 ml, TV = 500 ml. You correctly answered: 1400 ml.
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Calculate the FVC of an individual with the following respiratory volumes: RV = 1000 ml, IRV = 3000 ml, TV = 500 ml, ERV = 1500 ml. You correctly answered: 5000 ml.
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The inhaler medication caused several values to return to normal TV, ERV, FEV1%. It did not cause all values to return to normal because mucus is still blocking the airway. My prediction was inccorect. How much of an increase in FEV do you think is required for it to be considered significantly improved by the medication? Your answer: Around 20-25% would be enough for it to be considered significantly improved.
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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: The IRV changed the most drastically therefore my prediction was correct.
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Compare the breathing rates during normal breathing, moderate exercise, and heavy exercise. Your answer: The breathing rate increased with moderate and heavy exercise. A greater increase in breathing was seen in heavy exercise.
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Physio Ex Exercise 7 Activity 2
Course: Human Physiology Lab (BIOL 240)
University: Indiana University of Pennsylvania
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