Activity 2: Comparative Spirometry
2-1: What lung volumes changed (from those of a normal patient) in the spirogram when the patient with emphysema was selected? Why did these values change as they did? How well did the results compare with your prediction?
2-2: Which of these two parameters changed more for the patient with emphysema, the FVC or the FEV1? Why?
2-3: Which lung values changed (from those of the normal patient) in the spirogram when the patient experiencing an acute asthma attack was selected? Why did these values change as they did?
2-4: How is having an acute asthma attack similar to having Emphysema?
2-5: How are asthma and Emphysema different?
2-6: Describe the effect that an inhaler medication had on an asthmatic patient? Did all the spirogram values return to normal?
2-7: How much of an increase in FEV1 do you think is required for it to be considered significantly improved by the medication?
2-8: With moderate aerobic exercise, which changed more from normal breathing, the ERV or IRV? How well did the results compare with your prediction?
2-9: Compare the breathing rates during normal breathing, moderate, and heavy exercise?
Activity 3: Effect of Surfactant and Intrapleural Pressure on Respiration
3-1: What effect does surfactant have on airflow?
3-2: Why does respiratory distress syndrome happen in premature babies and how is it treated?
3-3: What effect did opening the valve have on the left lung? Why does this happen?
3-4: What effect on the collapsed lung in the left side of the glass bell jar did you observe when you closed the valve? How well did the results compare with your prediction?
3-5: What emergency medical condition does opening the left valve simulate?
3-6: In the last part of the activity, you clicked the reset button to draw the air out of the Intrapleural space and return the lung to its normal resting condition. What emergency procedure would be used to achieve the results if these were lungs in a living person?
3-7: What do you think would happen when the valve is opened if the two lungs were in a single cavity rather than separate cavities?
3-8: How would the spirogram look in a patient with COPD? Please refer to your text as needed.
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