PFT Final Exam with precise [] [] [] [] []
detailed solutions []
A 22 year old patient with dyspnea performs three spirometry
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trials the PFT tech should do which of the following? - Correct
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answer ✔Perform at least one more maneuver
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PFT testing is contraindicated in which of the following
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conditions? - Correct answer ✔Untreated pneumothorax [] [] [] [] []
An FEV1% is less tha predicted is a good indication for
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bronchodilator studies. However, FEV1% should not be used to [] [] [] [] [] [] [] [] []
judge bronchodilator response - Correct answer ✔True
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Which of the following is the most important measurement for
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distinguishing an obstructive impairment? - Correct answer [] [] [] [] [] [] []
✔FEV1/VC
Measurement of lung volumes (TLC) is indicated - Correct [] [] [] [] [] [] [] [] []
answer ✔To diagnose restrictive lung disease
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The reported flow volume loop should come from which trial? -
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Correct answer ✔Trial 3 [] [] []
,A subject being tested for possible environmental exposure to
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asbestos produces the following spirometery results - Correct
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answer ✔The patient did not make a good effort on the MVV
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A subject has an FVC of 1.8 L (39% of predicted). The same
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individual has a slow VC of 2.7 L. Which of the following might
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explain these findings? - Correct answer ✔1. Airway compression
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in obstructive lung disease
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2. Poor effort or early termination of the FVC
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Only obstruction can cause the FEV1 to be less than predicted -
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Correct answer ✔False [] []
DLCO is commonly used to monitor drug toxicity - Correct
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answer ✔True []
The following DLCO data (reported in ml CO/min/mmhg) are
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obtained from a subject. What should technologist do next? -
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Correct answer ✔Report the mean of the second and third trials
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Reversibility of airway obstruction is considered significant for an
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increase of greater than _____% for either the FEV1 or the FVC -
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Correct answer ✔12%
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A patient with an FEV1 65% of predicted would be considered
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what severity of obstruction? - Correct answer ✔Moderate
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, Restrictive lung disease is characterized by the reduction of lung
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volumes indicated by the _____ and ____ reduced below the
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lower limit of normal - Correct answer ✔TLC and VC
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Healthy adults without obstruction can expire their FVC within -
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Correct answer ✔4-6 seconds [] [] []
Regarding spirometry: the only criterion for eliminating a test
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session completely is the failure to obtain ____ acceptable
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maneuvers after at least ______ attempts - Correct answer ✔2 [] [] [] [] [] [] [] [] [] []
and 8 []
Correct performance of the DLCOsb requires the subject to
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inspire at least - Correct answer ✔85% of the VC
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No more than ______ repeated DLCO maneuvers should be
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performed because of the effect of increasing [] [] [] [] [] [] []
carboxyhemoglobin - Correct answer ✔5 [] [] [] []
Measurement of respiratory muscle strength is accomplished by [] [] [] [] [] [] [] []
assessing which of the following? - Correct answer ✔MIP and
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MEP
Which of the following anthropomorphic factors are used in the
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calculation of the patien'ts predicted level of pulmonary [] [] [] [] [] [] [] []
function? - Correct answer ✔1. Age [] [] [] [] []
2. Height
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3. Weight
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detailed solutions []
A 22 year old patient with dyspnea performs three spirometry
[] [] [] [] [] [] [] [] [] []
trials the PFT tech should do which of the following? - Correct
[] [] [] [] [] [] [] [] [] [] [] []
answer ✔Perform at least one more maneuver
[] [] [] [] [] []
PFT testing is contraindicated in which of the following
[] [] [] [] [] [] [] [] []
conditions? - Correct answer ✔Untreated pneumothorax [] [] [] [] []
An FEV1% is less tha predicted is a good indication for
[] [] [] [] [] [] [] [] [] [] []
bronchodilator studies. However, FEV1% should not be used to [] [] [] [] [] [] [] [] []
judge bronchodilator response - Correct answer ✔True
[] [] [] [] [] []
Which of the following is the most important measurement for
[] [] [] [] [] [] [] [] [] []
distinguishing an obstructive impairment? - Correct answer [] [] [] [] [] [] []
✔FEV1/VC
Measurement of lung volumes (TLC) is indicated - Correct [] [] [] [] [] [] [] [] []
answer ✔To diagnose restrictive lung disease
[] [] [] [] []
The reported flow volume loop should come from which trial? -
[] [] [] [] [] [] [] [] [] [] []
Correct answer ✔Trial 3 [] [] []
,A subject being tested for possible environmental exposure to
[] [] [] [] [] [] [] [] []
asbestos produces the following spirometery results - Correct
[] [] [] [] [] [] [] []
answer ✔The patient did not make a good effort on the MVV
[] [] [] [] [] [] [] [] [] [] []
A subject has an FVC of 1.8 L (39% of predicted). The same
[] [] [] [] [] [] [] [] [] [] [] [] []
individual has a slow VC of 2.7 L. Which of the following might
[] [] [] [] [] [] [] [] [] [] [] [] []
explain these findings? - Correct answer ✔1. Airway compression
[] [] [] [] [] [] [] []
in obstructive lung disease
[] [] [] []
2. Poor effort or early termination of the FVC
[] [] [] [] [] [] [] []
Only obstruction can cause the FEV1 to be less than predicted -
[] [] [] [] [] [] [] [] [] [] [] []
Correct answer ✔False [] []
DLCO is commonly used to monitor drug toxicity - Correct
[] [] [] [] [] [] [] [] [] []
answer ✔True []
The following DLCO data (reported in ml CO/min/mmhg) are
[] [] [] [] [] [] [] [] []
obtained from a subject. What should technologist do next? -
[] [] [] [] [] [] [] [] [] []
Correct answer ✔Report the mean of the second and third trials
[] [] [] [] [] [] [] [] [] []
Reversibility of airway obstruction is considered significant for an
[] [] [] [] [] [] [] []
increase of greater than _____% for either the FEV1 or the FVC -
[] [] [] [] [] [] [] [] [] [] [] [] []
Correct answer ✔12%
[] [] []
A patient with an FEV1 65% of predicted would be considered
[] [] [] [] [] [] [] [] [] [] []
what severity of obstruction? - Correct answer ✔Moderate
[] [] [] [] [] [] []
, Restrictive lung disease is characterized by the reduction of lung
[] [] [] [] [] [] [] [] []
volumes indicated by the _____ and ____ reduced below the
[] [] [] [] [] [] [] [] [] [] []
lower limit of normal - Correct answer ✔TLC and VC
[] [] [] [] [] [] [] [] []
Healthy adults without obstruction can expire their FVC within -
[] [] [] [] [] [] [] [] [] []
Correct answer ✔4-6 seconds [] [] []
Regarding spirometry: the only criterion for eliminating a test
[] [] [] [] [] [] [] [] []
session completely is the failure to obtain ____ acceptable
[] [] [] [] [] [] [] [] []
maneuvers after at least ______ attempts - Correct answer ✔2 [] [] [] [] [] [] [] [] [] []
and 8 []
Correct performance of the DLCOsb requires the subject to
[] [] [] [] [] [] [] [] []
inspire at least - Correct answer ✔85% of the VC
[] [] [] [] [] [] [] [] []
No more than ______ repeated DLCO maneuvers should be
[] [] [] [] [] [] [] [] []
performed because of the effect of increasing [] [] [] [] [] [] []
carboxyhemoglobin - Correct answer ✔5 [] [] [] []
Measurement of respiratory muscle strength is accomplished by [] [] [] [] [] [] [] []
assessing which of the following? - Correct answer ✔MIP and
[] [] [] [] [] [] [] [] [] []
MEP
Which of the following anthropomorphic factors are used in the
[] [] [] [] [] [] [] [] [] []
calculation of the patien'ts predicted level of pulmonary [] [] [] [] [] [] [] []
function? - Correct answer ✔1. Age [] [] [] [] []
2. Height
[]
3. Weight
[]
