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PFT Midterm Exam Questions With 100% Correct Answers
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PFT Midterm Exam Questions With 100% Correct Answers
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PFT Midterm Exam Questions With 100%Correct Answers
Spirometers that use a pneumotachograph
determine FVC by: - Correct Answer-Integration of
flow signal
A flow-sensing device that measures pressure
change across a fixed resistance: - Correct Answer-
Pneumotachograph
A volume-displacement spirometer that
incorporates a piston-in-cylinder and a moving
seal: - Correct Answer-Dry-rolling seal spirometer
A volume-displacement spirometer that consists of
three cylinders, one of which is inverted in water. -
Correct Answer-Water-sealed spirometer
A device with a disposable flow sensor that contains
transducers that emit and receive sound in
alternating directions. - Correct Answer-Ultrasonic
spirometer
,A device with a vane or wheel that turns at a speed
proportional to airflow: - Correct Answer-Turbine
spirometer
The laboratory volume-displacement spirometer is
being validated with a 3-liter calibration syringe.
After injecting the completely filled syringe into the
spirometer, the spirometer displays a reading of
2.80 liters at ATPS. Which of the following could be
true? - Correct Answer-Spirometer's results are not
within the range for acceptable validation.
The syringe or connecting tubing has a leak.
The spirometer has a leak.
A patient's FEV1 multiplied by 40 will give an
estimate of: - Correct Answer-MVV
According to the 2005 ATS/ERS Spirometry
Guideline, at least _______ acceptable forced
spirometry maneuvers should be obtained, of which
the two largest FVC values and the two largest
FEV1 values should each agree within _______. -
Correct Answer-Three; 0.150 liters
The results of a patient's spirometry are as follows:
, Predicted Measured
FVC (L): 3.73 2.81
FEV1 (L): 2.79 1.17
FEV1/FVC% 75 42
Which of the following is the most appropriate
interpretation of these data? - Correct Answer-
Airflow limitation
Predicted Measured After Rx
FVC (L): 4.08 2.85 3.29
FEV1 (L): 3.06 1.80 2.03
FEV1/FVC% 75 63 62
These results are most consistent with which of the
following interpretations? - Correct Answer-Airflow
limitation with significant improvement to Rx
A patient with shortness of breath performs
spirometry with the following results:
Maneuver 1 Maneuver 2 Maneuver 3
FVC (L): 3.22 3.29 3.35
FEV1 (L): 2.87 2.93 2.90 - Correct Answer-Report
an FVC=3.35 and FEV1=2.93
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