- Why a Published Pass Rate Is Hard to Find
- What the Exam Actually Measures
- Scaled Score 75: Reading the Passing Standard Correctly
- Where the 200 Questions Come From
- The Eligibility Filter Shapes Who Sits the Exam
- Retests, Proctoring and the Cost of a Second Attempt
- How to Evaluate Pass-Rate Claims You See Online
- Scheduling Preparation Around the Weighted Domains
- Don't Mix Up Initial Exam and Recertification Numbers
- Frequently Asked Questions
- We could not verify an official published first-time pass rate for the Radiology Practitioner Assistant examination, so this article cites none.
- The passing standard is a scaled score of 75, not 75% of questions answered correctly.
- The exam has 200 multiple-choice questions in 3 hours 30 minutes; 20% use image-based actual cases.
- Anatomy, Physiology, Pathophysiology and Image Evaluation carries 75 items, the largest single component.
Why a Published Pass Rate Is Hard to Find
Searching for the pass rate of the Radiology Practitioner Assistant (RPA) examination tends to end in frustration, and that is itself a finding worth reporting. The Certification Board for Radiology Practitioner Assistants (CBRPA) issues the credential, and the materials we reviewed (the Candidate Handbook, the content specifications, the application documents and the qualification pages) do not present a first-time or overall pass percentage. We are not going to invent one.
That does not leave candidates empty-handed. The structure of the exam, the way the passing score is defined, who is eligible to sit it, and what a failed attempt costs all tell you a great deal about how to think about your odds. This article walks through those facts. If you want the broader difficulty picture alongside this one, see our companion piece, How Hard Is the RPA Exam? Complete Difficulty Guide 2026.
What the Exam Actually Measures
The initial Radiology Practitioner Assistant examination is a secure computer examination delivered at Weber State University or at an approved off-site college or university with an institutional proctor. It contains 200 multiple-choice questions and allows 3 hours 30 minutes. Candidates need two forms of identification, one of them photographic. Books and personal calculators are prohibited.
Two format details matter for anyone estimating difficulty:
- Image-based actual cases make up 20% of questions. That is roughly one in five items requiring you to interpret an actual case rather than recall a fact. Candidates who studied from text alone often underestimate this.
- The content specifications identify nine case studies. These extended scenarios reward clinical reasoning across domains rather than isolated memorization.
Time pressure is moderate on paper: 200 items in 210 minutes is a little over a minute per question. But image-based items consume more than their share, so pacing discipline matters. Our RPA Study Guide 2026: How to Pass on Your First Attempt covers how to build that into your preparation.
Scaled Score 75: Reading the Passing Standard Correctly
The single most common misunderstanding about the pass threshold is treating it as a raw percentage. The initial examination's passing standard is a scaled score of 75, not 75% correct. These are different things. A scaled score converts your raw performance onto a reporting scale, so the number of items you must answer correctly is not simply 150 of 200.
Practically, this means you should aim for comfortable mastery rather than a bare-minimum target. Without a published raw cutoff, there is no safe "I only need to get X right" calculation to lean on.
Where the 200 Questions Come From
The content specifications list ten exam content components with published question counts. These are CBRPA's own headings and counts; we deliberately do not convert them into percentages, because the specifications do not present percentage weights. The counts, in listed order, are 6, 25, 10, 20, 75, 40, 8, 8, 4 and 4, which sum to 200.
| Component | Published Question Count |
|---|---|
| Patient Education | 6 |
| Patient Assessment and Management | 25 |
| Professional Communication | 10 |
| Pharmacology and Contrast | 20 |
| Anatomy, Physiology, Pathophysiology and Image Evaluation | 75 |
| Medical Imaging Procedures | 40 |
| Radiation Biology and Health Physics | 8 |
| Fluoroscopic Equipment and Operation | 8 |
| Medical Documentation and Records | 4 |
| Medical-Legal Circumstances | 4 |
Two of these components dominate: Anatomy, Physiology, Pathophysiology and Image Evaluation (75 items) and Medical Imaging Procedures (40 items) together account for 115 of the 200 questions. A candidate who is strong there has a large cushion; a candidate who is weak there has little room to recover through the small components.
Anatomy, Physiology, Pathophysiology and Image Evaluation (75 items)
The largest component and the one most connected to the image-based case items.
- Recognizing normal versus abnormal findings on imaging
- Linking pathophysiology to what an image shows
- Applying anatomy and physiology to case scenarios
Medical Imaging Procedures (40 items)
The second-largest block, tying procedural knowledge to patient care.
- Procedure sequences and the rationale behind them
- Patient preparation and post-procedure considerations
- Integration with pharmacology and contrast decisions
One caution: detailed-section labels in the specifications differ from the summary-table labels in components 1, 7, 9 and 10. We use the summary-table names throughout. For a component-by-component walkthrough, see RPA Exam Domains 2026: Complete Guide to All 10 Content Areas.
The Eligibility Filter Shapes Who Sits the Exam
A raw pass rate is only meaningful in light of who takes the test. The RPA examination is not open to the general public. Candidates must hold active ARRT radiographer status, complete a CBRPA-recognized academic program with a baccalaureate requirement, document radiologist-supervised clinical competencies, and hold current ACLS. Candidates who have completed the professional curriculum may test within six months before baccalaureate completion, with results held until the degree is complete.
This pre-selection means the candidate pool consists of already-credentialed radiologic technologists who have completed substantial advanced training. Any pass-rate comparison with open-enrollment exams would be misleading for exactly this reason.
Retests, Proctoring and the Cost of a Second Attempt
Even without a published pass rate, the economics of failing are clear enough to motivate thorough preparation. The Candidate Handbook lists a USD 200 retest application charge. Candidates testing at an off-site location also pay a USD 200 off-site proctoring cost in addition to the examination fee; that covers four billed proctor hours, not four hours of exam time, so it should not be read as a longer testing window.
We could not verify the current initial examination fee. The Join Us hub's RPA Exam Fees and Policy page returned a 404, and the linked application supplies no amount. We have not substituted the retest or proctor charge for it. Check the live CBRPA site before budgeting, and see RPA Certification Cost 2026: Complete Pricing Breakdown for what we can and cannot confirm.
| Item | Amount | Status |
|---|---|---|
| Initial examination fee | Not verified | Fee page returned 404; application lists no amount |
| Retest application charge | USD 200 | Candidate Handbook |
| Off-site proctoring | USD 200 | In addition to exam fee; four billed proctor hours |
| Annual renewal | USD 150 | Paid during birth month |
How to Evaluate Pass-Rate Claims You See Online
Because no official figure is available to us, you will encounter unsourced numbers. A few checks help:
- Ask for the denominator. How many candidates, over what years, and first-time versus repeat?
- Check the credential. "RPA" is a shared acronym across unrelated fields. A statistic for a different credential, or for robotic process automation, says nothing about the Radiology Practitioner Assistant examination.
- Watch for the 75 confusion. Claims that equate the scaled passing score of 75 with 75% correct are misreading the standard.
- Prefer CBRPA documents. The Candidate Handbook, content specifications and application pages are the authoritative references.
If you are weighing whether the credential justifies the effort at all, the more productive question is often return on investment; see Is the RPA Certification Worth It? Complete ROI Analysis 2026.
Scheduling Preparation Around the Weighted Domains
Since passing is a function of performance across a weighted blueprint, the sensible approach is to allocate time roughly in proportion to question counts, then reserve time for image-based practice. This is the only generic-method section in this article, and it is tied directly to the blueprint.
Anatomy, Physiology, Pathophysiology and Image Evaluation
- Start here because it holds 75 items and feeds the image-based cases
- Practice with actual case images, not only text review
Medical Imaging Procedures and Pharmacology and Contrast
- 40 and 20 items respectively, and closely linked in clinical scenarios
- Connect procedure choice to contrast considerations
Patient Assessment and Management, plus the smaller components
- 25 items for assessment; then Professional Communication, Patient Education, Radiation Biology and Health Physics, Fluoroscopic Equipment and Operation, Medical Documentation and Records, and Medical-Legal Circumstances
- Small counts, but each is a fixed block you can secure with efficient review
Timed mixed practice
- Simulate the 200-question, 3 hours 30 minutes format
- Rehearse pacing on image-based items
For a ready-made condensed reference to pair with this plan, try the RPA Cheat Sheet 2026: One-Page Review of Must-Know Facts, and use the RPA practice test to rehearse under realistic conditions.
Don't Mix Up Initial Exam and Recertification Numbers
CBRPA also administers a separate ten-year recertification examination, and its specifications are easy to confuse with the initial exam's. They are different instruments:
| Feature | Initial Examination | Ten-Year Recertification |
|---|---|---|
| Format | 200 multiple-choice questions, secure, proctored | 50 questions, open-book |
| Time | 3 hours 30 minutes | Three hours |
| Passing criterion | Scaled score of 75 | 75% raw score (published policy) |
| Fee | Not verified | USD 75 (published policy) |
None of the recertification specifications describes the initial examination, so do not carry them over when estimating your own odds. Likewise, ongoing maintenance has its own scheduling: annual renewal costs USD 150 in your birth month and requires ARRT standing, ACLS and continuing-education compliance. The handbook specifies 24 CE credits per two years, while the separate recertification policy specifies 12 relevant credits annually. These are distinct scheduling statements and should not be treated as interchangeable.
Once certified, the practical payoff shows up in the job market and in pay; see RPA Salary Guide 2026: Complete Earnings Analysis and RPA Jobs for what employment looks like.
Key Takeaway
Without a verified pass rate, the best predictor of your outcome is how well you cover the heavily weighted components, especially the 75-item anatomy and image evaluation block, and how comfortable you are with image-based cases. Prepare to a margin above "just passing," since the scaled score of 75 does not translate to a simple raw cutoff.
Frequently Asked Questions
We could not verify an official published pass rate in CBRPA's handbook, content specifications or application materials, so we do not cite one. Be skeptical of any precise figure that lacks a CBRPA source, date range and candidate count.
No. The initial examination uses a scaled passing score of 75, which is not the same as 75% correct. The documentation we reviewed does not state a raw-correct cutoff for the initial exam. See our passing score guide for detail.
The initial examination has 200 multiple-choice questions and allows 3 hours 30 minutes. About 20% of questions use image-based actual cases, and the specifications identify nine case studies.
The Candidate Handbook lists a USD 200 retest application charge. If you test at an off-site location, the USD 200 proctoring cost applies in addition to the examination fee. Check CBRPA directly for the current schedule and any waiting-period rules.
Anatomy, Physiology, Pathophysiology and Image Evaluation, with 75 published items, followed by Medical Imaging Procedures with 40. Together they represent 115 of 200 questions. Our domains guide breaks down all ten components.
For more background on the credential itself, see RPA Certification and What Is RPA Certification?, and when you are ready to test your readiness, start with the RPA Exam Prep practice questions.