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NBRC Registry Examination for Advanced Pulmonary Function Technologists Sample Questions:

1. When performing quality control in a body plethysmograph using a 5-L isothermal bottle, the VTGat shutter closure are as follows:

A pulmonary function technologist should

A) Service the mouth pressure transducer.
B) Recalibrate the box pressure transducer.
C) Check biological control before beginning testing.
D) Proceed with patient testing.

2. During an exercise (stress) test, the minute ventilation to carbon dioxide production (Ve /VCO2) ratio is 100.
This measurement indicates

A) Severe pulmonary hypertension
B) Increased work of breathing
C) Equipment malfunction
D) A normal response

3. Prior to performing a multiple-breath U2 washout test, a pulmonary function technologist is unable to zero the H2 gas analyzer. Which of the following may be responsible?

A) Inadequate vacuum
B) Condensation of water
C) Chopper motor failure
D) Exhausted fuel cell

4. A biologic control subject has a FRCplethof 4.0 ±0.3 L at panting frequencies between 60 and 70/min. During a QC run, the subject pants at55/min and a FRCplethof 3.90 L is recorded.
Which of the following is the most appropriate action to take?

A) Repeat the test, coaching the subject to pant more slowly.
B) Take the plethysmograph out of service pending corrective maintenance.
C) Recalibrate the mouth pressure transducer and repeat the test.
D) Continue using the system because it is within control limits.

5. 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

Solutions: