This overview includes information to help you prepare for the Limited Scope of Practice in Radiography exam. You’ll find details about the exam format, content areas, modules, scoring, registration, test-day rules, study resources, and sample practice questions.
Exam TypeState licensing exam for limited scope radiography | Administered ByARRT, on behalf of state licensing agencies |
Required ModuleCore module | Passing Score75 scaled score |
Exam Background and Purpose
The Limited Scope of Practice in Radiography exam is developed and administered by the American Registry of Radiologic Technologists (ARRT) for state licensing agencies. It is used to assess the knowledge and cognitive skills needed by operators of radiographic equipment who perform limited radiographic procedures.
This exam is used for state licensing purposes. Passing the Limited Scope exam does not make a candidate ARRT certified and registered. Licensing requirements, eligibility rules, accepted modules, fees, and retake policies are controlled by the state licensing agency.
Key point: every candidate takes the Core module, but your state determines which procedure modules you must take. Before studying, confirm your required modules with your state licensing agency.
Test Overview
The Limited Scope exam is computer-based and uses multiple-choice questions. The exam is delivered in modules, and each module is timed separately. You must answer every question before the computer allows you to move forward, but you can mark questions for review within the same module if time remains.
The Core module includes 100 scored questions and 15 unscored pilot questions. Procedure modules include 20 or 25 scored questions, plus 5 unscored pilot questions in each procedure module.
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Limited Scope Radiography Sample Practice Questions
Try these original Limited Scope Radiography-style sample questions. These examples reflect common Core and procedure-module topics, but they are not actual ARRT exam questions.
1. Patient Care: Identification
Before beginning an imaging exam, which action is most appropriate for verifying the patient’s identity?
- Ask the patient if they are ready for the exam.
- Confirm the patient’s identity using two approved identifiers.
- Use only the room number to identify the patient.
- Begin the exam if the patient responds when called by first name.
Show Answer and Explanation
Answer: B. Confirm the patient’s identity using two approved identifiers.
Patient identification should be verified before imaging. Room number, first name alone, or patient readiness does not adequately confirm identity.
2. Patient Care: Infection Control
Which action is the best example of standard precautions during a radiographic procedure?
- Using gloves only when the patient has a known infection
- Cleaning equipment only at the end of the day
- Performing hand hygiene and using appropriate personal protective equipment when exposure to body fluids is possible
- Assuming that ambulatory patients do not require infection control measures
Show Answer and Explanation
Answer: C. Performing hand hygiene and using appropriate personal protective equipment when exposure to body fluids is possible
Standard precautions are used for all patients when exposure risk is present. They are not limited to patients with known infections.
3. Safety: Radiation Protection
Which practice best follows the ALARA principle for personnel protection?
- Increasing exposure time to improve image quality
- Standing close to the patient during every exposure
- Using time, distance, and shielding to reduce occupational exposure
- Removing protective barriers when the patient is shielded
Show Answer and Explanation
Answer: C. Using time, distance, and shielding to reduce occupational exposure
ALARA means keeping exposure as low as reasonably achievable. For personnel protection, this is commonly supported by minimizing time, maximizing distance, and using appropriate shielding.
4. Image Production: Exposure Factors
If mAs is increased while other exposure factors remain unchanged, what is the expected effect on receptor exposure?
- Receptor exposure increases.
- Receptor exposure decreases.
- Image distortion decreases.
- Spatial resolution increases automatically.
Show Answer and Explanation
Answer: A. Receptor exposure increases.
mAs controls the quantity of x-ray photons produced. Increasing mAs generally increases receptor exposure if other technical factors remain the same.
5. Image Production: Distortion
Which factor most directly increases magnification on a radiographic image?
- Decreasing object-to-image receptor distance
- Increasing object-to-image receptor distance
- Decreasing patient motion
- Using the correct anatomic side marker
Show Answer and Explanation
Answer: B. Increasing object-to-image receptor distance
A larger object-to-image receptor distance increases magnification. Keeping the part close to the receptor helps reduce magnification and distortion.
6. Image Evaluation: Artifacts
A radiographic image shows an anatomy marker covering part of the area of interest. Which image-quality problem is present?
- Grid cutoff
- Motion blur
- Image artifact
- Quantum noise
Show Answer and Explanation
Answer: C. Image artifact
An artifact is an unwanted image feature that can obscure anatomy or interfere with evaluation. A marker covering anatomy is an artifact problem.
7. Chest Procedure Module
For a standard PA chest projection, why is the patient commonly positioned with the shoulders rolled forward?
- To move the scapulae away from the lung fields
- To increase motion artifact
- To shorten the exposure time
- To remove the need for a lateral projection
Show Answer and Explanation
Answer: A. To move the scapulae away from the lung fields
Rolling the shoulders forward helps move the scapulae laterally so they do not obscure the lung fields on the PA chest image.
8. Extremities Procedure Module
A lateral wrist projection should primarily demonstrate which relationship?
- The radius and ulna superimposed in profile alignment at the wrist
- The entire humerus and shoulder joint
- The chest and costophrenic angles
- The lumbar vertebrae and sacrum
Show Answer and Explanation
Answer: A. The radius and ulna superimposed in profile alignment at the wrist
A lateral wrist image is used to demonstrate the wrist in lateral position. The other choices describe unrelated anatomy.
9. Spine Procedure Module
For a lateral lumbar spine projection, which positioning goal is most important for reducing rotation?
- Keeping the shoulders and pelvis in the same vertical plane
- Turning the patient into a steep oblique position
- Flexing the elbows above the head to move the scapulae
- Rotating the head away from the image receptor
Show Answer and Explanation
Answer: A. Keeping the shoulders and pelvis in the same vertical plane
For a true lateral lumbar image, the shoulders and pelvis should be aligned to reduce rotation. Rotation can distort the appearance of vertebral structures.
How Is the Limited Scope Exam Scored?
ARRT uses scaled scoring. A scaled score of 75 is required to pass, but 75 is not a percentage. The number of correct answers needed to earn a scaled score of 75 can vary depending on the difficulty of the exam version.
ARRT provides score information to your state licensing agency. Your state licensing agency determines your pass/fail status and handles questions about state licensing results.
Score Basics
- Passing scaled score: 75
- Score scale: 1 to 99
- Not a percentage: 75 does not mean 75% correct
- Core module: includes 100 scored questions and 15 unscored pilot questions
- Procedure modules: include 20 or 25 scored questions plus 5 unscored pilot questions
- Results: sent to the state licensing agency
Registration, Eligibility, and Testing Options
Eligibility is determined by the state licensing agency, not by ARRT alone. If your state determines that you are eligible, you will receive instructions for creating an ARRT state candidate account, paying the exam fee, and scheduling your appointment.
After your exam record is processed, ARRT assigns a 90-day examination window. You can schedule your exam through Pearson VUE after you receive your Candidate Status Report and verify that your information and required modules are correct.
Before You Register or Schedule
- Confirm your state’s eligibility requirements.
- Verify which modules your state requires for your license category.
- Create your ARRT state candidate account only after your state confirms eligibility.
- Review your Candidate Status Report carefully.
- Make sure your name matches your required identification documents.
- Schedule your exam within your assigned 90-day window.
- Review current Pearson VUE test-center rules before test day.
Test-Day Rules
At the test center, you will complete check-in procedures, take a short tutorial, respond to the nondisclosure agreement, and complete your assigned exam modules. Each module has its own timer. Voluntary breaks do not stop the exam clock.
You may flag questions for review within a module, but once you end a module, you cannot return to that module. Because there is no advantage to leaving questions blank, answer every question.
Test-Day Checklist
- Arrive early for your appointment.
- Bring the required identification listed in your exam instructions.
- Do not bring prohibited personal items into the testing room.
- Complete the tutorial so you understand the testing tools.
- Answer every question before moving forward.
- Use the flag feature for questions you want to review within the same module.
- Review flagged questions only if time remains in that module.
- Do not end a module until you are ready to move on permanently.
Retaking the Exam
Retake rules are controlled by your state licensing agency. Depending on your state, you may need to reapply, pay another fee, wait for a new authorization, or test within a new examination window.
Before retesting, focus on the module or content area where you were weakest. Core review should include patient care, radiation safety, and image production. Procedure-module review should focus on the specific anatomic regions required by your state.
How Can I Prepare for the Limited Scope Radiography Exam?
Start by confirming your required modules, then study the official content specifications for those modules. The Core module should be the foundation of your study plan because every candidate takes it.
Limited Scope Radiography Study Checklist
- Confirm which procedure modules your state requires.
- Study the Core module first: Patient Care, Safety, and Image Production.
- Review patient identification, consent, confidentiality, communication, infection control, and emergency response.
- Study radiation physics, radiation biology, shielding, collimation, exposure reduction, dosimetry, and ALARA.
- Review mAs, kVp, SID, OID, focal spot size, motion, grids, digital image characteristics, and image artifacts.
- Practice image evaluation questions involving exposure indicator, contrast, spatial resolution, distortion, anatomy markers, and artifacts.
- Study positioning terminology, routine projections, and anatomy for each required procedure module.
- Use timed practice so you are comfortable with the pace of each module.
Limited Scope Radiography Study Resources
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Last Updated: July 2026