Pass Exam With Full Sureness - RPFT Dumps with 112 Questions
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NEW QUESTION 35
During daily quality control procedures on an infrared CO2analyzer, a pulmonary function technologist is unable to adjust the gain to the calibration gas concentration. Which of the following is the most likely explanation?
- A. Saturation of the soda lime
- B. Water droplets in the sample cell
- C. Presence of high levels of oxygen
- D. Increased gas sampling rate
Answer: B
NEW QUESTION 36
The following data are obtained for a 60-year-old male undergoing an exercise (stress) test on an ergometer:
A pulmonary function technologist should
- A. Stop the test because this is an abnormal VD/VT response.
- B. Continue the test since this is a normal cardiopulmonary response.
- C. Stop the test because the blood pressure response is abnormal.
- D. Stop the test because the heart rate is too high after 10 minutes.
Answer: C
NEW QUESTION 37
During an exercise study, the RER will equal the RQ only when the patient is at
- A. Steady state
- B. Peak exercise
- C. Rest
- D. The anaerobic threshold
Answer: A
NEW QUESTION 38
The following data are observed during an exercise test:
Which of the following should a pulmonary function technologist do?
- A. Continue the test until the patient reaches maximal tolerance.
- B. Discontinue the test and ensure patient safety.
- C. Continue the test until the patient is symptomatic.
- D. Discontinue the test after the next stage.
Answer: B
NEW QUESTION 39
Biological control data are obtained for lung volumes by plethysmography. The following results are obtained:
A pulmonary function technologist should repeat the test instructing the individual to
- A. Pant at 90 to 100 Hz
- B. Inhale to TV
- C. Inhale to TLC
- D. Pant at 40 to 50 Hz
Answer: C
NEW QUESTION 40 
Which of the above patterns illustrates the effect of increasing temperature in the plethysmograph during airways resistance measurement?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 41
A patient will undergo bronchial provocation testing with methacholine chloride (Provocholine). Baseline spirometry reveals the FVC is 4.00 L and FEV1is 3.00 L.
The provocative dose 20% (PD20) can be calculated when which of the following measurements occur?
- A. The FVC falls below 3.20 L, or the FEV1falls below 2.40 L.
- B. The FEV, falls below 2.40 L, regardless of change in FVC.
- C. The FVC falls below 3.20 L and the FEV1falls below 2.40 L.
- D. The ratio FEV1/FVC falls below 0.8.
Answer: B
NEW QUESTION 42
During a cardiopulmonary stress test using breath-by-breath gas analysis, a pulmonary function technologist notices that the VO2 suddenly 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. O2 analyzer "phase delay" has increased.
4. There is a leak in the tubing or mouthpiece.
- A. 1, 2, and 4 only
- B. 1, 3, and 4 only
- C. 2, 3, and 4 only
- D. 1, 2, and 3 only
Answer: B
Explanation:
Explanation/Reference:
NEW QUESTION 43
The following biologic control measurements are obtained:
Which of the following patterns appears in this plot?
- A. Shift
- B. Drift
- C. Noise
- D. In control
Answer: C
NEW QUESTION 44
Which of the following is a valid reason for using biologic controls for DLCo?
- A. Establishing precision of the procedure
- B. Determining the lower limit of normal values
- C. Assessing accuracy of the volume measuring device
- D. Identifying the source of gas analyzer error
Answer: C
NEW QUESTION 45
A patient's vital capacity is slightly reduced, the FEWFVC is normal, and the uncorrected DLco is increased.
Which of the following is the most likely diagnosis?
- A. diffuse pulmonary fibrosis
- B. kyphoscoliosis
- C. polycythemia vera
- D. diaphragmatic hemiparesis
Answer: C
NEW QUESTION 46
A pulmonary function technologist is performing quality control on a nebulizer used in the 5-breath dosimeter bronchial challenge. The target output of the device is 0.09 mL, plus or minus 10%. After 10 actuations, the nebulizer output was 75 µL with a 2.0 mL initial saline dose in the nebulizer. The technologist should
- A. Accept the results and begin using the device.
- B. Clean and reevaluate this nebulizer.
- C. Open the vent before starting the bronchial challenge.
- D. Add an exhalation filter and proceed with testing patients.
Answer: A
NEW QUESTION 47
The following biologic control measurements are obtained:
Which of the following patterns appears in this plot?
- A. Shift
- B. Drift
- C. Noise
- D. In control
Answer: C
NEW QUESTION 48
Which of the following is correct regarding smoking cessation?
- A. Support systems are minimally effective in smoking cessation.
- B. Withdrawal symptoms are mild and last less than 48 hours.
- C. Pharmacologic therapy increases chances of success along with counseling.
- D. Smokers who quit suddenly and without help are most likely to be successful.
Answer: C
NEW QUESTION 49
A patient with severe airflow limitation pants too rapidly (> 3 breaths/second) against a closed shutter in a body plethysmograph. Which of the following will occur?
- A. RAWunderestimation
- B. VTGunderestimation
- C. RAWoverestimation
- D. VTGoverestimation
Answer: C
NEW QUESTION 50
A pulmonary function technologist is performing an exercise study on a patient with sarcoidosis. Which of the following end-tidalCO2values should the technologist expect at rest, if the test is performed appropriately?
- A. 4-5%
- B. 2-3%
- C. 0-1.5%
- D. 7-10%
Answer: A
NEW QUESTION 51
The following biologic control data ranges were established:
The following additional data were obtained when assessing the equipment:
Which of the following should a pulmonary function technologist do?
- A. Continue testing patients.
- B. Change the DLcoCO analyzer.
- C. Check the flow sensor.
- D. Change the CO2and H2O absorbers.
Answer: C
NEW QUESTION 52
The following values are reported at maximum effort for a 50-year-old, 70-kg (154-lb) male with significant coronary artery disease during ergometer stress testing. Which of the following is most likely an error?
- A. VE65L/min
- B. HR145/min
- C. workload 200 watts
- D. RER1.2
Answer: C
NEW QUESTION 53
A 9-year-old girl had an FVC of 2.35 L1 year ago. She was 122 cm (4 ft) tall and weighed
29.5 kg (65 lb). Her current height is 127 cm (4 ft 2 in), and her weight is 34 kg (75 lb). The current FVC measurement is 2.20 L.
The quality of both tests met ATS/ERS goals. A pulmonary function technologist should conclude the change is
- A. Significant since her weight has changed.
- B. Significant since a decline is not expected.
- C. Not significant since it is less than a 15% decrease.
- D. Not significant since it is within normal test variability.
Answer: B
NEW QUESTION 54
When performing quality control in a body plethysmograph using a 5-L isothermal bottle, the VTG at shutter closure are as follows:
A pulmonary function technologist should
- A. Check biological control before beginning testing.
- B. Proceed with patient testing.
- C. Service the mouth pressure transducer.
- D. Recalibrate the box pressure transducer.
Answer: C
Explanation:
Explanation/Reference:
NEW QUESTION 55
An arterial blood gas performed prior to exercise on a 45-year-old patient shows the following results:
A pulmonary function technologist should conclude that the patient's
- A. Values are within normal limits.
- B. Dead space ventilation is above normal.
- C. Alveolar ventilation is above normal.
- D. Hemoglobin level is below normal.
Answer: D
NEW QUESTION 56
Which of the following is correct regarding smoking cessation?
- A. Support systems are minimally effective in smoking cessation.
- B. Withdrawal symptoms are mild and last less than 48 hours.
- C. Pharmacologic therapy increases chances of success along with counseling.
- D. Smokers who quit suddenly and without help are most likely to be successful.
Answer: C
NEW QUESTION 57
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