PFT TEST EXAM WITH 100% CORRECT
ANSWERS
In which of the following conditions is total lung
capacity (TLC) always reduced? - Correct Answer-
restrictive lung disease
The vital capacity includes: - Correct Answer-I. tidal
volume
II. inspiratory reserve volume
III. expiratory reserve volume
Which of the following provides the best
information when determining obstructive disease?
- Correct Answer-FEV1/FVC%
In terms of other volumes and capacities, how can
VC be defined? - Correct Answer-VT+IRV+ERV
What is the most common measurement of
pulmonary mechanics during pulmonary function
testing? - Correct Answer-forced vital capacity
A patient has a VC of 4200 mL, and FRC of 3300
mL, and an ERV of 1500 mL. What is the RV? -
Correct Answer-1800mL
,Which of the following volumes or capacities can
not be measured by simple spirometry? - Correct
Answer-I. functional residual capacity (FRC)
II. expiratory reserve volume (ERV)
In which of the following conditions is total lung
capacity (TLC) always reduced? - Correct Answer-
restrictive lung disease
In order for patients with obstructive lung disease
to be considered to have a significant reversible
component, the post bronchodilator FEV1 (forced
expiratory volume in the first second) should be at
least what percentage greater than the pre-
treatment FEV1? - Correct Answer-10%-15%
A 65 year-old man undergoes pulmonary function
testing as part of a research study. He has no
pulmonary complaints. He has never been a smoker
but has a history of asbestos exposure while serving
in the Navy. His pulmonary function test results are
as follows:
TestActualPredicted% PredictedFVC
(L)4.394.32102FEV1
(L)3.203.3795FEV1/FVC0.730.78N/AFRC
(L)3.173.2598RV (L)2.542.32109TLC
, (L)6.866.09113 - Correct Answer-this patient has
normal spirometry and lung volumes.
When used to determine FRC, the body
plethysmograph operates on which of the following
physical principles? - Correct Answer-Boyle's law
After a resting expiration, air still remains in the
lungs. What is the volume called? - Correct Answer-
FRC
For a patient diagnosed as having pulmonary
fibrosis, which of the following would represent his
pulmonary function study? TLC VC RV ERV -
Correct Answer-decreased decreased decreased
decreased
Please interpret the following PFT:
Predicted Actual %Pred
FVC(L) 6.11 4.96 81%
FEV1(L) 5.32 5.40 101%
Fev1/FVC(%) 87% 108% - Correct Answer-normal
PFT
In order for patients with obstructive lung disease
to be considered to have a significant reversible
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