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質問 1：
While performing duplicate blood gas analyses, a pulmonary function technologist notes that the second instrument gives consistently higher values forPaCO2and PaO2. Which of the following is the most probable cause of higher readings from the second instrument?
A. An excessive delay occurred between running the two samples
B. The sample chamber temperature is greater than 37° C
C. The PO2and PCO2electrode membranes have protein build-up
D. The sample chamber has a bacterial contaminate
正解：B
質問 2：
A body plethysmograph box pressure transducer fails the electronic calibration check after multiple attempts.
Which of the following should a pulmonary function technologist do?
1. Perform a biologic control test
2. Inspect the door seal.
3. Re-zero the box pressure transducer.
4. Perform a physical pressure calibration.
A. 1, 2, and 3 only
B. 2, 3, and 4 only
C. 1, 3, and 4 only
D. 1, 2, and 4 only
正解：A
質問 3：
Treadmill speed can be verified by
A. Dividing the height by the horizontal distance.
B. Multiplying the belt length by the cycles/min.
C. Multiplying the cycles/min by the height.
D. Dividing the cycles/min by the belt length.
正解：B
質問 4：
During a linearity check of a flow sensor in a plethysmograph with a 3-liter calibration syringe, a pulmonary function technologist observes the following:
Which of the following should the technologist do?
A. Perform an additional flow check at 10 L/sec.
B. Recalibrate and repeat the linearity check.
C. Look for an obstruction in the flow sensor.
D. Record these results and begin testing.
正解：C
質問 5：
A pulmonary function technologist is performing an exercise (stress) test on a patient with severe COPD. As the test progresses, the patient shows signs of increasing dyspnea. Measurements of inspiratory capacity decreased from 2.0 L to 1.5 L. Which of the following most likely occurred?
A. disconnected gas sampling line
B. acute decrease in FRC
C. drift in the flow transducer
D. dynamic hyperinflation
正解：B
質問 6：
While performing a quality control test on an open circuit nitrogen system, the volume of a 3-liter syringe is measured as 3.9 L. Which of the following is the most probable explanation?
A. The initial O2concentration in the syringe was greater than 0.21.
B. There was an air leak in the system.
C. The volume was not corrected from ATPS to BTPS.
D. The nitrogen analyzer gain was set too low.
正解：B
質問 7：
During a cardiopulmonary stress test using breath-by-breath gas analysis, a pulmonary function technologist notices that the VO2suddenly decreases. Which of the following may explain this change?
1. The patient has achieved anaerobic threshold.
2. The measurement of the expired gas volumes is inaccurate.
3. O2analyzer "phase delay" has increased.
4. There is a leak in the tubing or mouthpiece.
A. 1, 2, and 3 only
B. 2, 3, and 4 only
C. 1, 3, and 4 only
D. 1, 2, and 4 only
正解：C
質問 8：
A 66-year-old female performs spirometry with the following results:
The patient most likely has
A. Normal pulmonary function.
B. Restrictive lung disease.
C. Pulmonary hypertension.
D. Obstructive lung disease.
正解：B
While performing duplicate blood gas analyses, a pulmonary function technologist notes that the second instrument gives consistently higher values forPaCO2and PaO2. Which of the following is the most probable cause of higher readings from the second instrument?
A. An excessive delay occurred between running the two samples
B. The sample chamber temperature is greater than 37° C
C. The PO2and PCO2electrode membranes have protein build-up
D. The sample chamber has a bacterial contaminate
正解：B
質問 2：
A body plethysmograph box pressure transducer fails the electronic calibration check after multiple attempts.
Which of the following should a pulmonary function technologist do?
1. Perform a biologic control test
2. Inspect the door seal.
3. Re-zero the box pressure transducer.
4. Perform a physical pressure calibration.
A. 1, 2, and 3 only
B. 2, 3, and 4 only
C. 1, 3, and 4 only
D. 1, 2, and 4 only
正解：A
質問 3：
Treadmill speed can be verified by
A. Dividing the height by the horizontal distance.
B. Multiplying the belt length by the cycles/min.
C. Multiplying the cycles/min by the height.
D. Dividing the cycles/min by the belt length.
正解：B
質問 4：
During a linearity check of a flow sensor in a plethysmograph with a 3-liter calibration syringe, a pulmonary function technologist observes the following:
Which of the following should the technologist do?
A. Perform an additional flow check at 10 L/sec.
B. Recalibrate and repeat the linearity check.
C. Look for an obstruction in the flow sensor.
D. Record these results and begin testing.
正解：C
質問 5：
A pulmonary function technologist is performing an exercise (stress) test on a patient with severe COPD. As the test progresses, the patient shows signs of increasing dyspnea. Measurements of inspiratory capacity decreased from 2.0 L to 1.5 L. Which of the following most likely occurred?
A. disconnected gas sampling line
B. acute decrease in FRC
C. drift in the flow transducer
D. dynamic hyperinflation
正解：B
質問 6：
While performing a quality control test on an open circuit nitrogen system, the volume of a 3-liter syringe is measured as 3.9 L. Which of the following is the most probable explanation?
A. The initial O2concentration in the syringe was greater than 0.21.
B. There was an air leak in the system.
C. The volume was not corrected from ATPS to BTPS.
D. The nitrogen analyzer gain was set too low.
正解：B
質問 7：
During a cardiopulmonary stress test using breath-by-breath gas analysis, a pulmonary function technologist notices that the VO2suddenly decreases. Which of the following may explain this change?
1. The patient has achieved anaerobic threshold.
2. The measurement of the expired gas volumes is inaccurate.
3. O2analyzer "phase delay" has increased.
4. There is a leak in the tubing or mouthpiece.
A. 1, 2, and 3 only
B. 2, 3, and 4 only
C. 1, 3, and 4 only
D. 1, 2, and 4 only
正解：C
質問 8：
A 66-year-old female performs spirometry with the following results:
The patient most likely has
A. Normal pulmonary function.
B. Restrictive lung disease.
C. Pulmonary hypertension.
D. Obstructive lung disease.
正解：B
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