PFT Final Exam; Questions and Answers 100%
Verified
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
, PFT Final Exam; Questions and Answers 100%
Verified
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%
, PFT Final Exam; Questions and Answers 100%
Verified
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
Verified
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
, PFT Final Exam; Questions and Answers 100%
Verified
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%
, PFT Final Exam; Questions and Answers 100%
Verified
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
