ARRT Radiography Pass Rate & Hardest Sections
Taking the ARRT Radiography certification exam in 2026? Whether you're a radiography student about to graduate or a retaker looking for a better strategy, understanding the pass rate data and knowing which sections are hardest gives you a significant advantage.
This guide covers the real ARRT pass rate numbers, ranks all 5 content categories by difficulty, and provides proven study strategies for each — especially Image Production, the section that fails the most candidates.
free ARRT Radiography practice questionsPractice questions with detailed explanations
ARRT Radiography Exam Quick Facts
| Detail | Info |
|---|---|
| Exam Name | ARRT Radiography Certification |
| Questions | 230 (200 scored + 30 pilot) |
| Time Limit | 3 hours 50 minutes (230 minutes) |
| Question Types | Multiple choice, select-all-that-apply, drag-and-drop, hot-spot |
| Passing Score | 75 scaled (1-99 scale) |
| Exam Fee | $225 |
| Answer Format | Primarily 4-option multiple choice |
| Testing | Pearson VUE test centers |
| Validity | 2 years (renew with 24 CEs) |
The Real ARRT Radiography Pass Rate
First-Time Pass Rates
| Candidate Type | Estimated Pass Rate |
|---|---|
| Accredited program graduates (first attempt) | 84-89% |
| All first-time candidates | 80-85% |
| Retakers | 55-65% |
| Overall (all attempts) | 78-82% |
What the Numbers Tell You
The 84-89% first-time pass rate is encouraging, but context matters:
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Program quality varies wildly. JRCERT publishes individual program pass rates. Some programs achieve 95-100% pass rates while others fall below 60%. Check your program's rate for a realistic benchmark.
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Retakers have a much harder time. The 55-65% retaker pass rate shows that candidates who fail once often struggle with the same content areas. This is usually because they study "more" instead of studying "differently."
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The 15-20% who fail almost always cite the same two sections: Image Production and Safety. These are the sections where focused preparation makes the biggest difference.
All 5 Content Categories Ranked by Difficulty
| Rank | Category | Exam Weight | Difficulty | Why |
|---|---|---|---|---|
| #1 Hardest | Image Production | 30% | ★★★★★ | Technical factor calculations, artifact identification, digital imaging |
| #2 | Safety | 19% | ★★★★☆ | Radiation biology and protection concepts require conceptual understanding |
| #3 | Procedures | 22% | ★★★☆☆ | Positioning knowledge — memorization-heavy but learnable |
| #4 | Patient Care | 24% | ★★★☆☆ | Often underestimated — contrast reactions, emergencies, ethics |
| #5 Easiest | Equipment Operation & QA | 5% | ★★☆☆☆ | Small category, mostly practical knowledge |
Critical insight: Image Production (30%) + Patient Care (24%) + Procedures (22%) = 76% of the exam. Master these three categories and you're well past the passing threshold.
Category-by-Category Breakdown
#1 Hardest: Image Production (30%)
Why it's the hardest: Image Production tests your ability to manipulate and troubleshoot technical factors — not just know what they are. Questions require you to predict how changing one variable affects the final image, which demands true conceptual understanding.
Key Topics:
- Exposure technique factors:
- kVp — Controls beam quality (penetration), affects contrast. Rule: 15% kVp change = doubles/halves density
- mAs — Controls beam quantity (number of photons), directly proportional to density
- SID (Source-to-Image Distance) — Inverse square law: double distance = 1/4 intensity
- OID (Object-to-Image Distance) — Affects magnification and sharpness
- Image quality factors:
- Spatial resolution (detail/sharpness) — Affected by focal spot size, OID, SID, motion
- Contrast resolution — Affected by kVp, scatter, grid use, collimation
- Density (brightness in digital) — Controlled primarily by mAs
- Distortion — Size distortion (magnification) and shape distortion (elongation/foreshortening)
- Digital imaging:
- CR (Computed Radiography) vs. DR (Direct Radiography)
- Exposure indicator values — What they mean and how to interpret them
- Post-processing adjustments — Window/level, edge enhancement, image stitching
- Artifacts — Ghost images, dead pixels, grid artifacts, Moire patterns
- Grid use:
- Grid ratio, frequency, and focal distance
- Grid cutoff causes and prevention
- When to use/not use a grid
Study Strategy:
- Create a technical factor relationship chart: For every factor (kVp, mAs, SID, OID), list what happens to density, contrast, detail, and patient dose when you increase or decrease it
- Practice with "troubleshooting" questions: "The image is too dark — what change would correct this?"
- Understand exposure indicators — this is a common 2026 question focus as digital imaging evolves
- Allocate 25-30 hours to this category
#2: Safety (19%)
Why it's challenging: Safety covers radiation biology (how radiation damages cells) and radiation protection (how to minimize exposure). The biology concepts require understanding cellular processes, and the protection concepts require applying principles to novel scenarios.
Key Topics:
- Radiation biology:
- Direct vs. indirect effects of radiation on DNA
- Radiosensitivity — Law of Bergonié and Tribondeau (rapidly dividing, undifferentiated, long mitotic cells are most sensitive)
- Deterministic vs. stochastic effects
- LET (Linear Energy Transfer) and RBE (Relative Biological Effectiveness)
- Dose-response curves (linear, nonlinear, threshold, nonthreshold)
- Radiation protection:
- ALARA principle — Time, Distance, Shielding
- Regulatory dose limits — Occupational (50 mSv/year), public (1 mSv/year), embryo/fetus (5 mSv total, 0.5 mSv/month)
- Protective equipment — Lead aprons, thyroid shields, gonadal shielding
- Personnel monitoring — OSL dosimeters, film badges, where to wear them
- Patient protection — Collimation, filtration, shielding, technique optimization
- Radiation measurement:
- Exposure (Roentgen/C/kg), absorbed dose (rad/Gray), dose equivalent (rem/Sievert), effective dose
Study Strategy:
- Memorize the dose limits — they appear on every ARRT exam
- Understand the Law of Bergonié and Tribondeau and how to apply it to different tissues
- Know the difference between deterministic and stochastic effects
- Allocate 15-18 hours
AI Study AssistantPractice questions with detailed explanations
#3: Procedures (22%)
Why it's moderate: Procedures is primarily a memorization category — you need to know the correct positioning for dozens of radiographic examinations. The good news is that if you've been through clinical rotations, you've already practiced most of these.
Key Topics:
- Thorax — PA/AP chest, lateral, decubitus (and when to use each)
- Abdomen — AP supine, upright, decubitus, acute abdomen series
- Upper extremity — Wrist (PA, oblique, lateral, scaphoid), elbow, shoulder, clavicle
- Lower extremity — Ankle (AP, mortise, lateral), knee, hip, pelvis
- Spine — C-spine (AP, lateral, odontoid), T-spine, L-spine, sacrum/coccyx
- Skull — Caldwell, Waters, Towne, lateral, SMV (base)
- Special procedures — Contrast studies (upper GI, barium enema, IVP), fluoroscopy
- Pediatric considerations — Immobilization, technique modification, communication
Study Strategy:
- Use a positioning atlas or app for visual review
- Focus on central ray angles and entrance/exit points — these are the most commonly tested details
- Practice with "which projection best demonstrates..." questions
- Allocate 18-22 hours
#4: Patient Care (24%) — Don't Underestimate This
Why candidates underestimate it: Student radiographers focus so heavily on technical content that they neglect patient care — which is 24% of the exam (nearly 1 in 4 questions).
Key Topics:
- Contrast media reactions — Mild, moderate, severe reactions + appropriate responses
- Venipuncture — Technique, complications, contraindications
- Emergency procedures — CPR, shock management, anaphylaxis, patient fall protocols
- Patient communication — Informed consent, HIPAA, age-specific considerations
- Pharmacology — Contrast agents (iodinated vs. barium), sedation, emergency medications
- Medical ethics and legal — Scope of practice, patient rights, malpractice vs. negligence
- Infection control — Standard precautions, surgical asepsis, room preparation
Study Strategy:
- Review contrast media reactions and emergency responses — these are high-yield
- Know the difference between types of shock (hypovolemic, cardiogenic, anaphylactic)
- Don't skip legal/ethical questions — they're easy points if you study them
- Allocate 15-20 hours
#5 Easiest: Equipment Operation & QA (5%)
Key Topics:
- X-ray tube components and function
- Generator types (single-phase, three-phase, high-frequency)
- Quality control tests (half-value layer, reproducibility, linearity, kVp accuracy)
- Automatic Exposure Control (AEC) — backup time, positioning of chambers
Study Strategy:
- Only 5% of the exam — allocate 5-8 hours
- Focus on AEC concepts and QC test purposes (not calculations)
6-Week ARRT Radiography Study Plan
| Week | Focus | Hours | Practice Questions |
|---|---|---|---|
| Week 1 | Image Production Part 1: Exposure factors, kVp/mAs relationships | 12-14 | 30 questions |
| Week 2 | Image Production Part 2: Digital imaging, artifacts, grids | 10-12 | 30 questions |
| Week 3 | Safety: Radiation biology, protection, dose limits | 12-14 | 30 questions |
| Week 4 | Procedures: Positioning for thorax, abdomen, extremities, spine | 12-14 | 30 questions |
| Week 5 | Patient Care + Equipment: Contrast, emergencies, ethics, QA | 10-12 | 25 questions |
| Week 6 | Full practice exams + weak area drills + rest | 8-10 | 50+ questions |
Total: ~65-80 hours | 195+ practice questions
5 ARRT Exam Day Tips
- Image Production requires thinking, not memorizing — If you can explain WHY a change affects the image, you can answer any question. Focus on relationships between variables.
- Use process of elimination — ARRT questions always have one clearly wrong option. Eliminate it first, then evaluate the remaining three.
- Patient care questions test protocol — The answer is almost always "follow the established protocol," not "use your best judgment."
- Don't second-guess positioning — If you've done clinical rotations, trust your practical knowledge. The positioning that works at the table works on the exam.
- Time management — 230 questions in 3 hours 50 minutes = ~1 minute per question. Flag difficult questions and move on.
After Radiography: CT and MRI Certification
Once you have your Radiography credential, you can pursue ARRT postprimary certifications in CT and MRI:
| Certification | Additional Requirements | Difficulty vs. Radiography |
|---|---|---|
| ARRT CT | 16+ structured education hours + clinical experience | Harder (more physics, CT-specific artifacts) |
| ARRT MRI | 16+ structured education hours + clinical experience | Hardest ARRT exam (MRI safety, pulse sequences) |
Start Practicing Now
The ARRT Radiography exam tests your ability to apply technical knowledge to clinical scenarios. Understanding the concepts is essential, but practicing with exam-style questions is what builds the application skills the ARRT tests.
Free ARRT Radiography Practice Questions
- Exam-style questions covering all 5 content categories
- Image Production troubleshooting questions with detailed explanations
- AI tutor to explain exposure factors, radiation biology, and positioning
- Progress tracking by content category
Key Takeaways
- ARRT Radiography first-time pass rate is 84-89% from accredited programs
- Image Production (30%) is the hardest section — focus on technical factor relationships
- Don't underestimate Patient Care (24%) — it's nearly 1 in 4 questions
- Image Production + Patient Care + Procedures = 76% of the exam
- Study technical factor relationships, not just definitions
- Plan for 4-8 weeks of focused review (65-80 hours)
- Complete 195+ practice questions focusing on application-style problems
Follow this strategy, and you'll be well-prepared to pass the ARRT and start your career as a registered radiologic technologist.
Good luck with your ARRT Radiography certification!