Chapter 5 Pulmonary Function
Chapter
Testing5 and
Pulmonary
BedsideFunction
Pulmonary
Chapter
Testing
Mechanics
5 and
Pulmonary
Bedside
StudyFunction
Pulmonary
Guide 2026.pdf
Testing
Mechanics
and Bedside
Study Pulmonary
Guide 2026.pdf
Mechanics Study Guide 2026.pdf
Chapter 5 Pulmonary Function Testing
and Bedside Pulmonary Mechanics
Study Guide 2026
Guidehttps://www.stuvia.com/dashboard!@_)#*)(@$)($@*($@)($@*_
Chapter 5 Pulmonary Function
Chapter
Testing5 and
Pulmonary
BedsideFunction
Pulmonary
Chapter
Testing
Mechanics
5 and
Pulmonary
Bedside
StudyFunction
Pulmonary
Guide 2026.pdf
Testing
Mechanics
and Bedside
Study Pulmonary
Guide 2026.pdf
Mechanics Study Guide 2026.pdf
,Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf
Terms in this set (10)
When interpreting pulmonary function test results in A : The absolute values of pulmonary function test (PFT) measurements change
children, assessing whether values are "normal" is with the growth and development of children, so using the percentage of
complicated by _________________. predicted values best depicts pulmonary function over the long term. Ability to
A. Applying the process of obligatory miniaturization assess whether a specific measurement is normal may be complex because of the
B. The wide range of variability in normal children wide range of variability in normal children and the relatively small number of
C. Lack of predicted normal values children from whom the predicted norms have been determined. Despite these
D. A and C limitations, PFT measurements remain an integral component in evaluation and
E. B and C lengthy follow-up of children with pulmonary dysfunction over time.
Why do inspiratory retractions distort the ribs and B : Because the newborn's ribs are mostly cartilage, the chest wall is flexible. With
sternum inward during distressed breathing in a significant lung disease, the infant's chest wall may actually be more compliant
premature newborn? than the lungs, causing retractions in which the ribs and sternum distort inward
A. Negative inspiratory pressures exceed transpulmonary during inspiration, instead of expanding the lungs. The lung-thorax mechanical
pressure. relationship is less of the traditional "bag in a box" analogy and more like a "bag in
B. The chest wall is compliant and does not expand the a bag."
lungs.
C. The specific conductance of the lungs is higher than
the recoil of the chest wall.
D. Time constant differences result in a lag between lung
expansion and chest wall movement.
E. None of the above.
Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf
,Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf
Airway resistance (Raw) reflects the nonelastic airway and C : Airway resistance (Raw) reflects the nonelastic airway and tissue forces resisting
tissue forces resisting gas flow. How is Raw calculated? gas flow. Raw is calculated from the ratio of airway occlusion pressure to
A. By dividing the peak ventilating pressures by the peak expiratory flow. Raw is described in centimeters of water per liter per second (cm
flow rate H2O/L/s). Raw is dependent on the radius, length, and number of airways and
B. Using a modified Fick equation for gas flow varies with volume, flow, and respiratory frequency. The small diameters of an
C. From the ratio of airway occlusion pressure to infant's tracheobronchial tree result in high resistance to gas flow. Airway
expiratory flow irregularities, partial blocks caused by mucus, tumor, or foreign bodies, and partial
D. Using a tonometer and paramagnetic analyzer closure of the glottis can also elevate Raw. However, infants with severe lung
E. By dividing the ratio of upper airway flow by lower disease have an increased respiratory drive, and it may not be possible to induce a
airway compliance Hering-Breuer response.
Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf
, Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf
Which of the following are possible tests that may be A : The three methods of determining lung volumes are helium dilution, nitrogen
used to determine lung volume in an infant? washout, and plethysmography. Functional residual capacity is the value derived
I. Functional residual volume from all three of the tests; and thoracic gas volume is the actual value determined
II. Helium dilution during plethysmography and FRC is calculated using that determination.
III. Plethysmography
IV. Thoracic gas volume
V. Nitrogen washout
A. II, III, and V
B. I, III, and V
C. II and IV
D. III and IV
E. IV and V
What is the difference between pleural pressure and E : Transpulmonary pressure is the pressure exerted on the lungs for gas
airway pressure? movement; it is the difference between pleural and airway pressure. Pleural
A. End-expiratory pressure pressure measurements may not always be performed in assessing pulmonary
B. Hyperinflation pressure mechanics (PM) for ventilator-patient management. In general, under these
C. PD20 circumstances, it is assumed that the pressure in the large airways equalizes to the
D. Isovolume pressure distal airways in the lungs. In this case the compliance measurements are actually
E. Transpulmonary pressure of the respiratory system, including the chest wall, rather than of the lungs alone
Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf
Chapter
Testing5 and
Pulmonary
BedsideFunction
Pulmonary
Chapter
Testing
Mechanics
5 and
Pulmonary
Bedside
StudyFunction
Pulmonary
Guide 2026.pdf
Testing
Mechanics
and Bedside
Study Pulmonary
Guide 2026.pdf
Mechanics Study Guide 2026.pdf
Chapter 5 Pulmonary Function Testing
and Bedside Pulmonary Mechanics
Study Guide 2026
Guidehttps://www.stuvia.com/dashboard!@_)#*)(@$)($@*($@)($@*_
Chapter 5 Pulmonary Function
Chapter
Testing5 and
Pulmonary
BedsideFunction
Pulmonary
Chapter
Testing
Mechanics
5 and
Pulmonary
Bedside
StudyFunction
Pulmonary
Guide 2026.pdf
Testing
Mechanics
and Bedside
Study Pulmonary
Guide 2026.pdf
Mechanics Study Guide 2026.pdf
,Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf
Terms in this set (10)
When interpreting pulmonary function test results in A : The absolute values of pulmonary function test (PFT) measurements change
children, assessing whether values are "normal" is with the growth and development of children, so using the percentage of
complicated by _________________. predicted values best depicts pulmonary function over the long term. Ability to
A. Applying the process of obligatory miniaturization assess whether a specific measurement is normal may be complex because of the
B. The wide range of variability in normal children wide range of variability in normal children and the relatively small number of
C. Lack of predicted normal values children from whom the predicted norms have been determined. Despite these
D. A and C limitations, PFT measurements remain an integral component in evaluation and
E. B and C lengthy follow-up of children with pulmonary dysfunction over time.
Why do inspiratory retractions distort the ribs and B : Because the newborn's ribs are mostly cartilage, the chest wall is flexible. With
sternum inward during distressed breathing in a significant lung disease, the infant's chest wall may actually be more compliant
premature newborn? than the lungs, causing retractions in which the ribs and sternum distort inward
A. Negative inspiratory pressures exceed transpulmonary during inspiration, instead of expanding the lungs. The lung-thorax mechanical
pressure. relationship is less of the traditional "bag in a box" analogy and more like a "bag in
B. The chest wall is compliant and does not expand the a bag."
lungs.
C. The specific conductance of the lungs is higher than
the recoil of the chest wall.
D. Time constant differences result in a lag between lung
expansion and chest wall movement.
E. None of the above.
Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf
,Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf
Airway resistance (Raw) reflects the nonelastic airway and C : Airway resistance (Raw) reflects the nonelastic airway and tissue forces resisting
tissue forces resisting gas flow. How is Raw calculated? gas flow. Raw is calculated from the ratio of airway occlusion pressure to
A. By dividing the peak ventilating pressures by the peak expiratory flow. Raw is described in centimeters of water per liter per second (cm
flow rate H2O/L/s). Raw is dependent on the radius, length, and number of airways and
B. Using a modified Fick equation for gas flow varies with volume, flow, and respiratory frequency. The small diameters of an
C. From the ratio of airway occlusion pressure to infant's tracheobronchial tree result in high resistance to gas flow. Airway
expiratory flow irregularities, partial blocks caused by mucus, tumor, or foreign bodies, and partial
D. Using a tonometer and paramagnetic analyzer closure of the glottis can also elevate Raw. However, infants with severe lung
E. By dividing the ratio of upper airway flow by lower disease have an increased respiratory drive, and it may not be possible to induce a
airway compliance Hering-Breuer response.
Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf
, Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf
Which of the following are possible tests that may be A : The three methods of determining lung volumes are helium dilution, nitrogen
used to determine lung volume in an infant? washout, and plethysmography. Functional residual capacity is the value derived
I. Functional residual volume from all three of the tests; and thoracic gas volume is the actual value determined
II. Helium dilution during plethysmography and FRC is calculated using that determination.
III. Plethysmography
IV. Thoracic gas volume
V. Nitrogen washout
A. II, III, and V
B. I, III, and V
C. II and IV
D. III and IV
E. IV and V
What is the difference between pleural pressure and E : Transpulmonary pressure is the pressure exerted on the lungs for gas
airway pressure? movement; it is the difference between pleural and airway pressure. Pleural
A. End-expiratory pressure pressure measurements may not always be performed in assessing pulmonary
B. Hyperinflation pressure mechanics (PM) for ventilator-patient management. In general, under these
C. PD20 circumstances, it is assumed that the pressure in the large airways equalizes to the
D. Isovolume pressure distal airways in the lungs. In this case the compliance measurements are actually
E. Transpulmonary pressure of the respiratory system, including the chest wall, rather than of the lungs alone
Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf Chapter 5_ Pulmonary Function Testing and Bedside Pulmonary Mechanics.pdf
