Question 1

Tonometry of whole blood may be used to provide QC for which of the following?

Accepted Answer

A)  PO2 and PCO2 electrodes 
B)  PCO2 and pH electrodes 
C)  PO2 electrode only 
D)  pH electrode only 
A)  PO2 and PCO2 electrodes 
B)  PCO2 and pH electrodes 
C)  PO2 electrode only 
D)  pH electrode only A

Question 2

When developing a quality manual,which of the following questions is addressed with a process?

Accepted Answer

A)  How do we do this at organization XYZ? 
B)  How do we perform spirometry? 
C)  How are reliable lung volumes obtained? 
D)  How do we obtain an arterial specimen? 
A)  How do we do this at organization XYZ? 
B)  How do we perform spirometry? 
C)  How are reliable lung volumes obtained? 
D)  How do we obtain an arterial specimen? C

Question 3

A 3-L syringe is used to calibrate a spirometer;injection of the complete volume produces an output of 3.04 L.The correction factor for this system would be:

Accepted Answer

A)  0.967 
B)  0.987 
C)  1.013 
D)  1.100 
A)  0.967 
B)  0.987 
C)  1.013 
D)  1.100 B

Question 4

A DLCO simulator using two precision gases is set up to check the accuracy of an automated single-breath diffusion testing system.The following results are obtained using a 4-L inspired volume:   Both of the DLCO values are less than the expected values from the simulator.Which of the following best describes these findings?

Accepted Answer

A)  The IVC measurement is erroneous. 
B)  The gas analyzer measured CO incorrectly. 
C)  The gas analyzer measured the trace gas incorrectly. 
D)  BTPS correction was inadvertently left on during the simulation. 
A)  The IVC measurement is erroneous. 
B)  The gas analyzer measured CO incorrectly. 
C)  The gas analyzer measured the trace gas incorrectly. 
D)  BTPS correction was inadvertently left on during the simulation.

Question 5

If a volume-measuring spirometer meets the ATS-ERS standards for measuring FVC and is verified using a calibration syringe,how much measurement error is allowed?

Accepted Answer

A)  0% 
B)  3.5% 
C)  5.3% 
D)  10% 
A)  0% 
B)  3.5% 
C)  5.3% 
D)  10%

Question 6

A spirometer recorder used for plotting flow-volume curves has a volume (x axis)sensitivity of 25 mm/L.The flow axis (y axis)sensitivity should be:

Accepted Answer

A)  12.5 mm/L/sec 
B)  25.0 mm/L/sec 
C)  50.0 mm/L/sec 
D)  50.0 mm/L 
A)  12.5 mm/L/sec 
B)  25.0 mm/L/sec 
C)  50.0 mm/L/sec 
D)  50.0 mm/L

Question 7

Quality control is performed on a cartridge-based blood gas analyzer,and the following control chart is recorded for the pH:   What action should the pulmonary function technologist take,based on these results?

Accepted Answer

A)  Begin analyzing blood gases because the instrument is in control. 
B)  Run one additional Level 2 control to determine instrument status. 
C)  Take the instrument out of service because it is out of control. 
D)  Re-membrane the pH electrode and rerun Level 2. 
A)  Begin analyzing blood gases because the instrument is in control. 
B)  Run one additional Level 2 control to determine instrument status. 
C)  Take the instrument out of service because it is out of control. 
D)  Re-membrane the pH electrode and rerun Level 2.

Question 8

An automated blood gas analyzer displays acceptable calibrations with no electrode drift noted.Multiple-level QC shows values for PCO2 and PO2 that are within 2 SD of the mean,but all pH values are more than 3 SD above the mean.Which of the following is most likely the cause?

Accepted Answer

A)  Buffers are contaminated. 
B)  Calibration gas is contaminated. 
C)  Analyzer temperature is not 37° C. 
D)  Gas-liquid correction factor is set too low. 
A)  Buffers are contaminated. 
B)  Calibration gas is contaminated. 
C)  Analyzer temperature is not 37° C. 
D)  Gas-liquid correction factor is set too low.

Question 9

A pulmonary function technologist uses a 3-L syringe and a tank of 10% He to prepare serial dilutions of gas to verify the linearity of a helium analyzer used for closed-circuit measurements of FRC.The following data are recorded:   On the basis of these results,the technologist should conclude that:

Accepted Answer

A)  The He analyzer is performing acceptably. 
B)  The He analyzer is nonlinear. 
C)  The syringe had a significant leak. 
D)  The He tank was mislabeled. 
A)  The He analyzer is performing acceptably. 
B)  The He analyzer is nonlinear. 
C)  The syringe had a significant leak. 
D)  The He tank was mislabeled.

Question 10

A biologic control subject performs DLCO measurements on 20 consecutive days,and the following statistics are calculated:   The coefficient of variation for the DLCO in this subject:

Accepted Answer

A)  Is approximately 4.5% 
B)  Cannot be calculated until 30 measurements have been made 
C)  Suggests that the patient may have asthma 
D)  Indicates that the DLCO system displays excessive variability 
A)  Is approximately 4.5% 
B)  Cannot be calculated until 30 measurements have been made 
C)  Suggests that the patient may have asthma 
D)  Indicates that the DLCO system displays excessive variability

Question 11

A CO2 analyzer is calibrated using a 5% CO2 mixture with a water vapor absorber in the sample line.If the barometric pressure is 747 mm Hg and the analyzer is set up to read partial pressure,the analyzer should be adjusted to read which of the following?

Accepted Answer

A)  40 mm Hg 
B)  37 mm Hg 
C)  35 mm Hg 
D)  31 mm Hg 
A)  40 mm Hg 
B)  37 mm Hg 
C)  35 mm Hg 
D)  31 mm Hg

Question 12

According to ATS-ERS recommendations,what three flow rates are required to calibrate a flow sensor?

Accepted Answer

A)  0.5 L/sec,4.0 L/sec,6.0 L/sec 
B)  1.5 L/sec,3.0 L/sec,6.0 L/sec 
C)  0.5 L/sec,3.0 L/sec,12.0 L/sec 
D)  1.0 L/sec,4.0 L/sec,12.0 L/sec 
A)  0.5 L/sec,4.0 L/sec,6.0 L/sec 
B)  1.5 L/sec,3.0 L/sec,6.0 L/sec 
C)  0.5 L/sec,3.0 L/sec,12.0 L/sec 
D)  1.0 L/sec,4.0 L/sec,12.0 L/sec

Question 13

A subject performs spirometry,and these results are recorded from three acceptable trials:   The flow-volume curve from which trial should be reported?

Accepted Answer

A)  Trial 1 
B)  Trial 2 
C)  Trial 3 
D)  Either Trial 1 or Trial 3 
A)  Trial 1 
B)  Trial 2 
C)  Trial 3 
D)  Either Trial 1 or Trial 3

Question 14

According to 2005 ATS-ERS recommendations,calibration syringes should be accurate to within (±):

Accepted Answer

A)  3.5% 
B)  0.5% 
C)  20 ml 
D)  30 ml 
A)  3.5% 
B)  0.5% 
C)  20 ml 
D)  30 ml

Question 15

Multiple injections by a 3-L syringe into a bellows-type spirometer produce the following results:   Which of the following best describes these results?

Accepted Answer

A)  The spirometer shows excessive drift. 
B)  The volume is being inappropriately corrected to BTPS. 
C)  The spirometer bellows are sticking. 
D)  Spirometer performance is acceptable. 
A)  The spirometer shows excessive drift. 
B)  The volume is being inappropriately corrected to BTPS. 
C)  The spirometer bellows are sticking. 
D)  Spirometer performance is acceptable.

Question 16

The BTPS correction adjusts the measured result obtained in the spirometer to the:

Accepted Answer

A)  Ambient temperature for the surrounding air 
B)  Volume that was originally in the lungs 
C)  Barometric pressure at the altitude where the testing is conducted 
D)  Relative humidity in the testing room 
A)  Ambient temperature for the surrounding air 
B)  Volume that was originally in the lungs 
C)  Barometric pressure at the altitude where the testing is conducted 
D)  Relative humidity in the testing room

Question 17

A patient whose FVC is 4 L performs two DLCOsb maneuvers with the following results:   The pulmonary function technologist should:

Accepted Answer

A)  Reject Trial 1 because of the VI. 
B)  Reject Trial 2 because of the breath-hold time. 
C)  Report the DLCOsb as 22.0 ml CO/min/mm Hg. 
D)  Report the DLCOsb as 21.2 ml CO/min/mm Hg. 
A)  Reject Trial 1 because of the VI. 
B)  Reject Trial 2 because of the breath-hold time. 
C)  Report the DLCOsb as 22.0 ml CO/min/mm Hg. 
D)  Report the DLCOsb as 21.2 ml CO/min/mm Hg.

Question 18

According to ATS recommendations,the range and accuracy for a diagnostic spirometer should be which of the following?

Accepted Answer

A)  0 to 14 L with less than 1.5 cm H2O/L/sec resistance 
B)  0.5 to 8 L ± 3% of reading or ± 0.05 L,whichever is greater 
C)  0.5 to 6 L ± 5% of reading or ± 0.1 L,whichever is greater 
D)  0.1 to 5 L ± 3% of reading or ± 0.05 L,whichever is greater 
A)  0 to 14 L with less than 1.5 cm H2O/L/sec resistance 
B)  0.5 to 8 L ± 3% of reading or ± 0.05 L,whichever is greater 
C)  0.5 to 6 L ± 5% of reading or ± 0.1 L,whichever is greater 
D)  0.1 to 5 L ± 3% of reading or ± 0.05 L,whichever is greater

Question 19

A portable office spirometer is being checked with a 3-L syringe as a simulated patient.The spirometer uses disposable flow sensors that are calibrated during manufacture.These results are recorded:   On the basis of these findings,the pulmonary function technologist should:

Accepted Answer

A)  Replace the device's temperature sensor. 
B)  Stop using the spirometer for patient testing until it can be repaired. 
C)  Have the calibration syringe checked for volume accuracy. 
D)  Continue using the spirometer for patient testing. 
A)  Replace the device's temperature sensor. 
B)  Stop using the spirometer for patient testing until it can be repaired. 
C)  Have the calibration syringe checked for volume accuracy. 
D)  Continue using the spirometer for patient testing.

Question 20

What should the technologist do in response to the following Levy-Jennings plot of a PO2 electrode?

Accepted Answer

A)  Rerun the control. 
B)  Take the analyzer out of service. 
C)  Run another PaO2 control level. 
D)  Continue to test patient samples and call technical support. 
A)  Rerun the control. 
B)  Take the analyzer out of service. 
C)  Run another PaO2 control level. 
D)  Continue to test patient samples and call technical support.

Tonometry of whole blood may be used to provide QC for which of the following?

When developing a quality manual,which of the following questions is addressed with a process?

A 3-L syringe is used to calibrate a spirometer;injection of the complete volume produces an output of 3.04 L.The correction factor for this system would be:

If a volume-measuring spirometer meets the ATS-ERS standards for measuring FVC and is verified using a calibration syringe,how much measurement error is allowed?

A spirometer recorder used for plotting flow-volume curves has a volume (x axis)sensitivity of 25 mm/L.The flow axis (y axis)sensitivity should be:

Quality control is performed on a cartridge-based blood gas analyzer,and the following control chart is recorded for the pH: What action should the pulmonary function technologist take,based on these results?

An automated blood gas analyzer displays acceptable calibrations with no electrode drift noted.Multiple-level QC shows values for PCO₂ and PO₂ that are within 2 SD of the mean,but all pH values are more than 3 SD above the mean.Which of the following is most likely the cause?

A pulmonary function technologist uses a 3-L syringe and a tank of 10% He to prepare serial dilutions of gas to verify the linearity of a helium analyzer used for closed-circuit measurements of FRC.The following data are recorded: On the basis of these results,the technologist should conclude that:

A biologic control subject performs DLCO measurements on 20 consecutive days,and the following statistics are calculated: The coefficient of variation for the DLCO in this subject:

A CO₂ analyzer is calibrated using a 5% CO₂mixture with a water vapor absorber in the sample line.If the barometric pressure is 747 mm Hg and the analyzer is set up to read partial pressure,the analyzer should be adjusted to read which of the following?

According to ATS-ERS recommendations,what three flow rates are required to calibrate a flow sensor?

A subject performs spirometry,and these results are recorded from three acceptable trials: The flow-volume curve from which trial should be reported?

According to 2005 ATS-ERS recommendations,calibration syringes should be accurate to within (±):

Multiple injections by a 3-L syringe into a bellows-type spirometer produce the following results: Which of the following best describes these results?

The BTPS correction adjusts the measured result obtained in the spirometer to the:

A patient whose FVC is 4 L performs two DLCOsb maneuvers with the following results: The pulmonary function technologist should:

According to ATS recommendations,the range and accuracy for a diagnostic spirometer should be which of the following?

A portable office spirometer is being checked with a 3-L syringe as a simulated patient.The spirometer uses disposable flow sensors that are calibrated during manufacture.These results are recorded: On the basis of these findings,the pulmonary function technologist should:

What should the technologist do in response to the following Levy-Jennings plot of a PO₂ electrode?

Indications for Pulmonary Function Testing

Spirometry

Diffusing Capacity Tests

Lung Volumes,airway Resistance,and Gas Distribution Tests

Ventilation and Ventilatory Control Tests

Blood Gases and Related Tests

Cardiopulmonary Exercise Testing

Pediatric Pulmonary Function Tests

Bronchoprovocation Testing

Specialized Test Regimens

Pulmonary Function Test Equipment

Reference Values and Interpretation Strategies

Filters

Exam 12: Quality Systems in the Pulmonary Function Laboratory

Tonometry of whole blood may be used to provide QC for which of the following?

When developing a quality manual,which of the following questions is addressed with a process?

A 3-L syringe is used to calibrate a spirometer;injection of the complete volume produces an output of 3.04 L.The correction factor for this system would be:

If a volume-measuring spirometer meets the ATS-ERS standards for measuring FVC and is verified using a calibration syringe,how much measurement error is allowed?

A spirometer recorder used for plotting flow-volume curves has a volume (x axis)sensitivity of 25 mm/L.The flow axis (y axis)sensitivity should be:

Quality control is performed on a cartridge-based blood gas analyzer,and the following control chart is recorded for the pH: What action should the pulmonary function technologist take,based on these results?

An automated blood gas analyzer displays acceptable calibrations with no electrode drift noted.Multiple-level QC shows values for PCO2 and PO2 that are within 2 SD of the mean,but all pH values are more than 3 SD above the mean.Which of the following is most likely the cause?

A pulmonary function technologist uses a 3-L syringe and a tank of 10% He to prepare serial dilutions of gas to verify the linearity of a helium analyzer used for closed-circuit measurements of FRC.The following data are recorded: On the basis of these results,the technologist should conclude that:

A biologic control subject performs DLCO measurements on 20 consecutive days,and the following statistics are calculated: The coefficient of variation for the DLCO in this subject:

A CO2 analyzer is calibrated using a 5% CO2 mixture with a water vapor absorber in the sample line.If the barometric pressure is 747 mm Hg and the analyzer is set up to read partial pressure,the analyzer should be adjusted to read which of the following?

According to ATS-ERS recommendations,what three flow rates are required to calibrate a flow sensor?

A subject performs spirometry,and these results are recorded from three acceptable trials: The flow-volume curve from which trial should be reported?

According to 2005 ATS-ERS recommendations,calibration syringes should be accurate to within (±):

Multiple injections by a 3-L syringe into a bellows-type spirometer produce the following results: Which of the following best describes these results?

The BTPS correction adjusts the measured result obtained in the spirometer to the:

A patient whose FVC is 4 L performs two DLCOsb maneuvers with the following results: The pulmonary function technologist should:

According to ATS recommendations,the range and accuracy for a diagnostic spirometer should be which of the following?

A portable office spirometer is being checked with a 3-L syringe as a simulated patient.The spirometer uses disposable flow sensors that are calibrated during manufacture.These results are recorded: On the basis of these findings,the pulmonary function technologist should:

What should the technologist do in response to the following Levy-Jennings plot of a PO2 electrode?

Indications for Pulmonary Function Testing

Spirometry

Diffusing Capacity Tests

Lung Volumes,airway Resistance,and Gas Distribution Tests

Ventilation and Ventilatory Control Tests

Blood Gases and Related Tests

Cardiopulmonary Exercise Testing

Pediatric Pulmonary Function Tests

Bronchoprovocation Testing

Specialized Test Regimens

Pulmonary Function Test Equipment

Reference Values and Interpretation Strategies

Filters

An automated blood gas analyzer displays acceptable calibrations with no electrode drift noted.Multiple-level QC shows values for PCO₂ and PO₂ that are within 2 SD of the mean,but all pH values are more than 3 SD above the mean.Which of the following is most likely the cause?

A CO₂ analyzer is calibrated using a 5% CO₂mixture with a water vapor absorber in the sample line.If the barometric pressure is 747 mm Hg and the analyzer is set up to read partial pressure,the analyzer should be adjusted to read which of the following?

What should the technologist do in response to the following Levy-Jennings plot of a PO₂ electrode?