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PFT Final Exam; Questions and Answers 100% Verified

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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? Corre...

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  • August 27, 2024
  • 30
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • pft final exam
  • questions and answers 100 verified

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  • Pulmonary Function Tests
  • Pulmonary Function Tests

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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

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