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PFT Exam Pulmonary function tests (All Answered Accurately)
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PFT Exam Pulmonary function tests (All Answered Accurately)
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PFT Exam Pulmonary function tests (AllAnswered Accurately)
Which of the following describes an appropriate physical measurement taken before pulmonary
function testing?
A) Actual body weight should be measured to calculate predicted values
B) Standing height without shoes should be measured to the nearest cm
C) Arm span instead of height should be measured in children under 12
D) Sitting height x 1.32 may be used for patients who cannot stand correct answers B
A 25 year old patient with suspected asthma performs spirometry. Her FVC is 3.2 L, and her
FEV1 is 2.2 L. Which of the following should the RT do next?
A) Administer a bronchodilator
B) Evaluate for possible restrictive disorder
C) Perform a bronchial challenge test
D) Check oxygen saturation by pulse oximetry correct answers A
A patient with COPD who is also a current smoker states that he has smoked within 1
hour before his scheduled PF test. Which of the following tests might produce inaccurate
results because of this?
1. FRC by He dilution
2. DLCO
3. Pulse oximetry
4. MIP and MEP
,A) 1,2,3
B) 2 and 3 only
C) 2 and 4 only
D) 3 and 4 only correct answers B
A patient performs 3 FVC maneuvers using a computerized spirometer. The spirometer reports
that all maneuvers has a back-extrapolated volume of less than 5% and 150mL. The maneuvers
met all other criteria for acceptability and repeatability. The RT should:
A) Repeat all maneuvers
B) Correct the FEV1 and all other flows by the amount of the back-extrapolated volume
C) Perform at least one more maneuver
D) Report the average of the 3 FVC values correct answers B
A 58 year old man who complains of increased shortness of breath with exercise has
the following spirometry results
Measured. Predicted. LLN. % predicted
FVC (L). 5.11. 4.93. 4.19. 104
FEV1 (L). 2.57. 3.95. 3.38. 65
These results are consistent with which of the following?
A) Normal lung function
B) Restrictive lung disease
C) Obstructive lung disease
D) Incorrect predicted values correct answers C
An 81 year old man performs 3 acceptable spirometry efforts and records these results:
Measured. Predicted. LLN. %Predicted
FVC (L). 2.17. 3.82. 3.25. 57
FEV1 (L). 1.71. 2.41. 2.05. 71
Which of the following do these values suggest?
,A) Normal spirometry for an elderly man
B) Obstructive Lung Disease
C) Restrictive Lung Disease
D) Erroneously measured FEV1 correct answers C
A 20 year old man complains of shortness of breath with exercise. The following are his
spirometry results:
Meas. Pred. LLN. %Pred. AfterBroncho. %change
FVC. 4.98. 5.83. 4.96. 85. 5.98. 20 FEV1. 3.18.
4.68. 3.98. 68. 3.50. 10
Which of the following statements best describes these findings?
A) Results are of normal spirometry
B) There is moderate obstruction w/ significant response to bronchodilators
C) There is moderate obstruction w/o significant response to bronchodilators
D) Results are inconsistent and must be repeated correct answers B
A 33 year old woman complains of increasing shortness of breath with exertion. Her spirometry
results are as follows:
Measured. Predicted. LLN. %Predicted
FVC (L). 2.25. 3.09. 2.62. 73
FEV1 (L). 1.84. 2.62. 2.23. 70
PEF (L/s). 2.77. 6.17. 5.24. 45
MVV 45. 104. 43
Which of the following is most consistent with these results?
A) Moderate obstructive lung disease
B) Normal spirometry
C) Severe lung volume restriction
D) Muscle weakness or poor effort correct answers D
, How long should the RT wait after giving inhaled B2 agonist before conducting the post-
bronchodilator testing?
A) 5 mins
B) 15 mins
C) 30 mins
D) 45 mins correct answers B
A 14 year old male with CF performs 3 spirometry trials:
Trial 1. Trial 2. Trial 3.
FVC (L). 3.01. 2.99. 3.12.
FEV1 (L). 1.99. 2.01. 1.95.
The reported flow-volume loop should come from which data?
A) Trial 1
B) Trial 2
C) Trial 3
D) Average of all 3 trials correct answers C
A healthy, physically fit patient performs spirometry, and the following values are recorded:
Trial 1. Trial 2. Trial 3. Trial 4
FVC (L). 6.52. 6.23. 6.17. 6.37
FEV1 (L). 5.01. 5.22. 5.13. 5.19
Which values of FVC, FEV1, and FEV1% should be reported for this patient?
A) FVC = 6.52L, FEV1 = 5.22 L, FEV1% = 80%
B) FVC = 6.23L, FEV1 = 5.22 L, FEV1% = 84%
C) FVC = 6.52L, FEV1 = 5.01 L, FEV1% = 77%
D) FVC = 6.52L, FEV1 = 5.22 L, FEV1% = 82% correct answers A
A patient performs the following test:
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