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NBRC Registry Examination for Advanced Pulmonary Function Technologists Sample Questions:

1. A polarographic oxygen analyzer used to measure expired gas in a metabolic system should always be calibrated with

A) 100% oxygen and 100% nitrogen, fully saturated
B) Gas concentrations higher and lower than the expected measurement
C) Oxygen mixtures containing 4% and 8% carbon dioxide
D) Air and fully saturated 100% oxygen.

2. The following values are obtained using a 3-liter calibration syringe during volume calibration of a dry-rolling spirometer:
2.80 L
2.79 L
2.82 L
The performance of this spirometer is best described as

A) Both accurate and precise.
B) Precise, but not accurate. .
C) Accurate, but not precise.
D) Neither accurate nor precise.

3. Which of the following is a suitable policy for following Standard Precautions in a pulmonary function laboratory?

A) Gloves are optional when obtaining arterial blood samples using a kit
B) Eye protection is required when obtaining ABGs from patients with hepatitis.
C) Reusable mouthpieces should be disinfected between each patient.
D) Reusable mouthpieces should be disposed when a patient has a history of tuberculosis.

4. At maximum exercise, a 24-year-old patient's heart rate is 150/min with a VO2of 750 mUmin. The calculated
02 pulse is most consistent with which of the following?

A) achievement of anaerobic threshold
B) cystic fibrosis
C) deconditioning
D) cardiomyopathy

5. A 54-year-old male with a normal ECG at rest develops dyspnea during an exercise (stress) test, and the following ECG pattern is noted at 25 watts:

25 mm/sec A pulmonary function technologist should

A) Stop the test immediately; there is evidence of heart block.
B) Stop the test immediately; there is evidence of ischemia.
C) Continue the test until the subject reaches target heart rate.
D) Continue the test and obtain an arterial blood sample.

Solutions: