How Hard Is the RPFT Exam?
Pass Rates, Difficulty Factors, and What to Expect
Difficulty Level: Moderate to Challenging
The RPFT requires achieving the high cut score on the PFT exam, which tests specialized knowledge in pulmonary function testing. The 2-hour time limit with 115 questions creates time pressure.
Why It’s Challenging
- •Specialized content: Pulmonary function testing is a niche area
- •Technical depth: Must understand equipment, techniques, and interpretation
- •ATS/ERS standards: Exam is closely aligned with current guidelines
- •Time pressure: 115 questions in 2 hours = ~63 seconds per question
- •High cut score: Must achieve the higher of two cut scores for RPFT
What Makes It Manageable
- •Narrower content scope than general respiratory therapy exams
- •Well-defined content outline from NBRC
- •Free practice exam available
- •Most candidates have relevant education or experience
Pass Rate
NBRC does not publicly release specific pass rates for the PFT exam.
Common Challenges
- •Interpretation of PFT patterns (obstructive vs restrictive)
- •Reference equation selection and application
- •Quality control criteria and troubleshooting
- •Gas exchange measurements (DLCO)
- •Equipment calibration and maintenance
Tips for Success
- Study ATS/ERS standards documents thoroughly
- Practice interpreting PFT tracings and data tables
- Review reference equations and their clinical application
- Focus on quality control — it’s heavily tested
- Use the NBRC free practice exam to identify weak areas
Frequently Asked Questions
What is the RPFT exam?
The RPFT is a standardized exam. For a comprehensive study guide with practice questions and full-length exams, see our RPFT Study Guide.
How should I prepare for the RPFT?
Start with a structured study plan, use official exam blueprints, and practice with realistic exam questions. Our RPFT Study Guide covers the complete exam content with detailed rationales.
Where can I find RPFT practice questions?
Our RPFT Study Guide includes full-length practice exams with detailed answer rationales covering every content area on the actual exam.
Related Resources
Ready to Take the Next Step?
Our RPFT Study Guide covers every content area with practice questions and detailed answer rationales.