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NBRC Registry Examination for Advanced Pulmonary Function Technologists Sample Questions:

1. A pulmonary function technologist reviews the following home monitoring spirometry results:
According to National Asthma Education and Prevention Program (NAEPP) guidelines, what feedback should the technologist give to the patient regarding test performance?

A) Ask the patient to blow out longer.
B) Encourage the patient to continue testing and monitoring the FEW
C) Ask the patient to recalibrate the spirometer.
D) Come into the office for further instructions on proper testing technique.

2. 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) Recalibrate and repeat the linearity check.
B) Record these results and begin testing.
C) Look for an obstruction in the flow sensor.
D) Perform an additional flow check at 10 L/sec.

3. Which of the following tracings represents an airways resistance maneuver performed with a slow breathing frequency?

A) Option B
B) Option C
C) Option A
D) Option D

4. Results of two blood gas samples drawn from the same patient, 30 minutes apart, are shown below:
Which of the following is the most likely explanation for these differences?

A) The patient has developed a pneumothorax.
B) The 10:30 blood sample has been contaminated with air.
C) The 10:30 blood sample contains an excess of heparin solution.
D) The patient's minute ventilation has increased.

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

Solutions: