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NBRC Registry Examination for Advanced Pulmonary Function Technologists Sample Questions:

1. During an exercise study, the RER will equal the RQ only when the patient is at

A) Peak exercise
B) Steady state
C) Rest
D) The anaerobic threshold

2. A patient is performing a flow-volume loop. A pulmonary function technologist observes equal decreases in expiratory and inspiratory flows resulting in plateaus. Patient effort is satisfactory, and he follows instructions well. The technologist should expect the patient to have a

A) Restrictive disorder
B) Variable large airways obstruction
C) Fixed large airways obstruction.
D) Small airways obstruction

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

4. 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 ratio FEV1/FVC falls below 0.8.
B) The FVC falls below 3.20 L, or the FEV1falls below 2.40 L.
C) The FEV, falls below 2.40 L, regardless of change in FVC.
D) The FVC falls below 3.20 L and the FEV1falls below 2.40 L.

5. The following results are obtained from an adult patient:
Which of the following is the best interpretation of these values?

A) Airways obstruction
B) Small airway disease
C) Normal values
D) Combined obstruction/restriction

Solutions: