Respiratory Air Flow and Volume PDF

 

Respiratory Air Flow and Volume

Exercise 1: Lung volumes and capacities capacities Using the Horizontal Horizontal Compression Compress ion butto buttons ns and  and the scroll bar, display the data you wish to include in your report.

 The predicted values are based on the Goldman and Becklake equations for Pulmonary Function (cited from the John Hopkins Pulmonary Laboratory)

 

1. Comment on the differences between the experim experimental ental and predicted v values alues for VC, VC, FRC FRC and TLC in the table above. What could cause these differences, if any?     r     e     w     s     n      A

Study Questions 2. In quiet breathing, breathing, muscular effort is used us ed mainly in inspiration, ins piration, and expiration expiration is llargely argely passiv passi ve, due to elastic recoil of the lung. Can you relate this fact to the pattern of expiratory and inspiratory flow? Hint: the normal pattern of breathing breathing is efficient in that it requires muscular effort for only a short time.     r     e     w     s     n      A

3. Ex Explai plain n why RV cannot be determi determined ned by ordinary ordinar y spi spirometry? rometry?     r     e     w     s     n      A

Exercise 2: Pulmonary function function tests Using the Horizontal Horizontal Compress Compression ion controls and the scroll bar, display displ ay tthe he data y you ou wish to include in i n yo your ur report.

 

Study Questions 4. Comment on the differences between the ex experim perimental ental and predi predicted cted values values for FVC, FEV FEV1 1 and the FEV FEV1/FVC ratio in the table above. What could cause these differences, if any?     r     e     w     s     n      A

5. In you own words descri describe be the phy physi siologi ological cal significance signi ficance of the F FEV EV1/FV 1/FVC ratio?     r     e     w     s     n      A

6. Were your your results for forced breathing consistent consi stent across all three trials? trials ? IfIf not, why not?     r     e     w     s     n      A

 

Exercise 3: Simulated airway obs obstructio truction n Using the Horizontal Horizontal Compress Compression ion controls and the scroll bar, display displ ay tthe he data for both normal pulmonary function function tests (Exercise 2) and the simulated obstructed airway (Exercise 3) for inclusion in your report.

Study Questions 7. Based on your your data, w what hat values values hav ha ve been affec affected ted by simul si mulated ated airway obstruction obstructi on and why?     r     e     w     s     n      A

8. In your own words ex explai plain n tthe he phy physi siologi ological cal events events that occurred during this si simul mulated ated asthm asthma a at attack. tack. Hint: Think about what it felt like and how that would affect your general state of well being and activity level.     r     e     w     s     n      A

 

function tests in different volun v oluntee teers rs Exercise 4: Pulmonary function Using the Horizontal Horizontal Compressi Compression on controls and the scroll bar, display the data for for Ex Exercise ercise 4 you wish to include in your report.

Study Questions 9. Comment on the range of results shown s hown in the ttable able for Ex Exercise ercise 4.     r     e     w     s     n      A

10. What ffactors actors do you think could contribute to differences in pulmonary pulm onary parameters between the volunteers? olunteers ?     r     e     w     s     n      A

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