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NBRC Registry Examination for Advanced Pulmonary Function Technologists Sample Questions:

1. 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.

2. During the calibration and set-up of the metabolic stress testing system for a patient breathing supplemental oxygen, which of the following gas concentrations will ensure accurate calibration of the system?

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

3. In which of the following patients would an end-tidal CO2most likely produce values that are inconsistent with PaCO2?

A) 42 year old with moderate COPD
B) 12 year old with kyphoscoliosis
C) 20 year old who smokes cigarettes
D) 50 year old with mild scleroderma

4. 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) Hemoglobin level is below normal.
B) Values are within normal limits.
C) Dead space ventilation is above normal.
D) Alveolar ventilation is above normal.

5. The normal response to an increasing PaCO2is

A) To maintain a constant VEuntil the PaCO2exceeds 55 torr.
B) An increase in VEof 10to15L/min/torrPCO2.
C) An increase in VEof 1 to 6 L/min/torr PCO2.
D) A decrease in VEof 2to5L/min/torrPCO2.

Solutions: