NBRC : RPFT Questions & Answers

Updated: Sep 14, 2026

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NBRC RPFT Exam Syllabus Topics:

SectionWeightObjectives
Procedures44%- Result Validity Assessment
  • 1. Artifact recognition and exclusion
    • 2. Acceptability and reproducibility criteria
      • 3. Technical quality evaluation
        - Test Selection and Preparation
        • 1. Patient preparation and instruction
          • 2. Protocol selection based on indication
            • 3. Contraindications and safety precautions
              - Test Performance
              • 1. Technique and standardization
                • 2. Spirometry, lung volumes, diffusion capacity
                  • 3. Exercise testing and specialized studies
                    Instrumentation and Equipment33%- Troubleshooting and Quality Control
                    • 1. Corrective actions and documentation
                      • 2. Equipment malfunction identification
                        • 3. Performance verification and quality assurance
                          - Setup, Maintenance, Calibration
                          • 1. Calibration standards and procedures
                            • 2. Plethysmographs and test equipment
                              • 3. Gas analyzers and measurement systems
                                • 4. Body measurement devices
                                  Data Management and Interpretation23%- Calculation and Reference Values
                                  • 1. Predicted values and percent-predicted reporting
                                    • 2. Selection of appropriate reference equations
                                      • 3. Parameter calculation and correction
                                        - Clinical Interpretation
                                        • 1. Pattern recognition and classification
                                          • 2. Report generation and communication
                                            • 3. Correlation with clinical context
                                              - Reliability and Quality Review
                                              • 1. Variability and repeatability assessment
                                                • 2. Data integrity and completeness

                                                  NBRC Registry Examination for Advanced Pulmonary Function Technologists Sample Questions:

                                                  Question #1

                                                  A 35-year-old healthy male is performing a maximal stress test as part of an annual physical. The following data are observed:

                                                  The patient denies any symptoms. Which of the following should a pulmonary function technologist do first?

                                                  • A. Move the pulse oximeter sensor to another site
                                                  • B. Administer oxygen at 3-4 L/min by nasal cannula
                                                  • C. Terminate the test and stabilize the patient.
                                                  • D. Obtain an arterial blood gas while continuing exercise
                                                  Reveal Solution  Discussion  0

                                                  Correct Answer: C  🗳️

                                                  Question #2

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

                                                  • A. Reusable mouthpieces should be disposed when a patient has a history of tuberculosis.
                                                  • B. Eye protection is required when obtaining ABGs from patients with hepatitis.
                                                  • C. Gloves are optional when obtaining arterial blood samples using a kit
                                                  • D. Reusable mouthpieces should be disinfected between each patient.
                                                  Reveal Solution  Discussion  0

                                                  Correct Answer: A  🗳️

                                                  Question #3

                                                  When using a variable pressure plethysmograph, a leak in the door seal that develops subsequent to calibration will cause underestimation of

                                                  • A. Raw
                                                  • B. Alveolar pressure
                                                  • C. vital capacity
                                                  • D. VTG
                                                  Reveal Solution  Discussion  0

                                                  Correct Answer: B  🗳️

                                                  Question #4

                                                  A patient has normal pulmonary and cardiac function. Which of the following is most likely when the patient reaches the anaerobic threshold during incremental stress testing?

                                                  • A. Decreased CO2production
                                                  • B. Increased RER
                                                  • C. Increased VDA/VTratio
                                                  • D. Decreased VE
                                                  Reveal Solution  Discussion  0

                                                  Correct Answer: C  🗳️

                                                  Question #5

                                                  Which of the following sets of FIF data is most consistent with an extrathoracic airway obstruction?

                                                  • A. Option B
                                                  • B. Option D
                                                  • C. Option A
                                                  • D. Option C
                                                  Reveal Solution  Discussion  0

                                                  Correct Answer: B  🗳️

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