Which of the following are characteristics of obstructive lung disease when measured values
are compared to predicted normals
(choose more than one)
I. VC is increased
II. FRC is increased
III. RV is increased
IV. RV/TLC ratio is increased Correct Ans-II. FRC is increased
III. RV is increased
IV. RVC/TLC ratio is increased
which of the following patients could demonstrate an increased TGV?
A. moderate/ severe asthma
B. pulmonary fibrosis
C. pneumonia
D. pulmonary edema Correct Ans-moderate/severe asthma
It is extremely important that both the N2 washout test and He dilution test both begin at
what point of the respiratory cycle? Correct Ans-FRC
, PFT exam 2- Test Questions and Answers
what study produces the most accurate determination of TLC in a patient with severe
emphysema? Correct Ans-body plethysmography
True or False: compliance decreases with pulmonary fibrosis Correct Ans-true
VC is equal to ? Correct Ans-IC + ERV
Which of the following is the most likely diagnosis on the basis of the pulmonary function
study below
FVC: 85%
FEF 25-75% : 60%
DLCO: 76%
FEV1/FVC%: 55%
FEV1: 68% Correct Ans-chronic bronchitis
In reviewing the flow volume loop, the pulmonary function technologist should be used to
evaluate patient effort? Correct Ans-PEF max
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