Prepare for the ARRT MRI exam by studying to the official distribution: 200 scored questions weighted toward Image Production (106) and Procedures (57). Confirm your postprimary eligibility first, learn each category from the official content outline, practice MR safety screening in a fixed order, and plan test day around the documented ID and cancellation rules.
What the ARRT MRI exam is and which version applies
You are preparing for the American Registry of Radiologic Technologists (ARRT) credential examination in Magnetic Resonance Imaging, a postprimary credential for technologists in the United States. The current content specifications were board approved in January 2024 and took effect February 1, 2025.
ARRT states the exam's purpose directly: it assesses whether you have the knowledge and thinking skills needed for entry-level MRI practice. The tasks it reflects came from a practice analysis survey of MR technologists nationwide, and every content category links back to tasks on that inventory.
The content specifications are a testing blueprint, not a curriculum. Your educational program may cover more, but the exam draws its topics from this document, so it is the right checklist for your study plan. ARRT lists Magnetic Resonance Imaging among its current Registered Technologist examination content specifications on its website.
Some course catalogs and study sites abbreviate this credential as MRI (AM). The official materials call it the Magnetic Resonance Imaging credential, and this guide uses that name throughout.
Official sources: ARRT Magnetic Resonance Imaging Content Specifications effective January 2025 — Examination Content Specifications and content outline, board approved January 2024, implementation February 1, 2025; Examination Content Specifications - ARRT — List of current Registered Technologist examination content specifications
Qualifying through the postprimary pathway
MRI is earned through ARRT's postprimary eligibility pathway, which has three requirements: education, ethics, and examination. You apply after meeting the pathway's prerequisite conditions, and the current handbook governs your application.
The postprimary pathway applies when you have already earned a supporting ARRT credential through the primary pathway, or a supporting credential from another ARRT-recognized organization. In some cases, a program director can give permission to begin logging the required clinical experience and structured education while you finish your educational program. The handbook's eligibility chart shows which supporting credentials open the MRI route; read the current edition for the exact list and its footnotes.
The credential carries practical weight beyond the exam itself. ARRT notes that some employers require its certification and registration for their technologists, and many states use ARRT exams as a basis for issuing licenses. Check your own state's licensing rules separately, because state requirements can add conditions.
ARRT updates its handbooks each year and states that the latest edition supersedes earlier ones, so download the current handbook before you apply and again before you test.
Official sources: ARRT 2026 Postprimary Eligibility Pathway Handbook — Eligibility, application, exam format, scheduling, scoring, and security sections
Exam format, timing, and pilot questions
The MRI exam contains 200 scored questions delivered in random order, with a 210-minute test time inside a 230-minute appointment, or 3 hours and 50 minutes. Additional unscored pilot questions are mixed in, and the two official documents disagree on that count.
Most questions are multiple choice with one best answer, but expect variations: some ask you to select multiple answers, sort options into order with your mouse, select an image region, or answer after watching a short video clip. Questions appear in random order rather than grouped by topic.
On the pilot questions, the sources differ. The 2025 content specifications state the exam adds 30 unscored pilot questions, while the 2026 handbook's format chart lists 20 pilot items for MRI, for 220 total. ARRT does not identify pilot questions and your answers to them do not affect your score, so the conflict does not change how you prepare or pace yourself.
At the test center you will complete an 8-minute tutorial, accept a nondisclosure agreement within two minutes, and finish with a 10-minute survey. You can flag difficult questions and return to them, and you can leave a comment on any question while answering it.
Official sources: ARRT Magnetic Resonance Imaging Content Specifications effective January 2025 — Examination Content Specifications and content outline, board approved January 2024, implementation February 1, 2025; ARRT 2026 Postprimary Eligibility Pathway Handbook — Eligibility, application, exam format, scheduling, scoring, and security sections
Official content categories and weights
The 200 scored questions divide across four categories: Patient Care (16), Safety (21), Image Production (106), and Procedures (57). Image Production and Procedures together account for 163 of 200 scored questions, so they deserve the largest share of your study time.
The table below reproduces the official distribution, including the subcategory counts that tell you where each category's emphasis sits. Note that Image Production's three subcategories are roughly balanced, while Procedures leans heavily toward neurological studies.
Use the full content outline on the ARRT website as your topic checklist. The outline pages list the specific topics within every subcategory, from patients' rights and infection control through pulse sequences, artifacts, quality control, and every procedure group. The category weights tell you where to invest time; the outline tells you exactly what to cover.
Practice exercise
Using the official counts above: how many scored questions fall outside Image Production and Procedures combined, and what percentage of the 200 scored questions do Image Production and Procedures represent together?
Show answer
37 scored questions fall outside the two categories, and the two categories together make up 81.5% of the scored exam.
Outside: 16 + 21 = 37. Combined: 106 + 57 = 163. Percentage: 163 / 200 = 0.815, or 81.5%. These are the only numbers involved, so the calculation is exact; the study conclusion you draw from it, that these two categories deserve most of your time, is planning advice rather than an official statement.
| Content category | Scored questions | Subcategories (scored questions) |
|---|---|---|
| Patient Care | 16 | Patient Interactions and Management (16) |
| Safety | 21 | MRI Screening and Safety (21) |
| Image Production | 106 | Physical Principles of Image Formation (40); Sequence Parameters and Options (36); Data Acquisition, Processing, and Storage (30) |
| Procedures | 57 | Neurological (25); Body (15); Musculoskeletal (17) |
| Total scored | 200 |
How questions are framed in the two biggest categories
The content specifications describe their own question focus, and that description should shape how you study. Image Production questions address how imaging parameters, weightings, and options interdepend and affect image quality; Procedures questions can touch any of several defined factors for each study.
For Image Production, the document says questions address the interdependence of the parameters, weightings, and options it lists, and how they affect image quality measures: contrast to noise ratio, signal to noise ratio, spatial resolution, and acquisition time. The practical takeaway is to study parameters in relation to each other and to those four outcomes, rather than as isolated definitions. The subcategory topic lists give you the full set of parameters, sequences, and processing methods to connect.
For Procedures, the document lists the factors questions may draw on for each study: anatomy and physiology including imaging planes, pathological considerations, protocol considerations, patient considerations such as pediatric or trauma cases, patient set-up including coil selection and landmarking, and the effect of contrast media on images. Studying each procedure through those lenses matches how the questions are built.
Patient Care and Safety are smaller by count but cover defined, high-stakes territory: ethical and legal aspects, communication, patient assistance and monitoring, medical emergencies, infection control, and pharmacology in Patient Care; screening, electromagnetic field effects, equipment, and the MR environment in Safety. Cover them completely rather than proportionally.
Practicing MR safety screening
The Safety category tests a screening process you can rehearse on paper: identify and document the item or device, research and verify its labeling as MR Safe, MR Conditional, or MR Unsafe, and identify any device-specific parameters. Designated MR safety zones appear in the outline as one of the environment topics this category covers.
The content outline names what screening must cover: biomedical implants, both active and passive; ferrous foreign bodies; medical conditions; prior diagnostic or surgical procedures; and topical or externally applied items such as tattoos, medication patches, and body piercing jewelry. On the equipment and environment side, the outline includes cryogen safety, ancillary equipment labeling, designated MR safety zones, gauss lines, and emergency procedures such as a quench.
The electromagnetic field topics, static field forces, RF heating described through SAR, and gradient effects such as acoustic noise, appear as outline topics. Study them from a current MR safety reference or your program materials, because the content outline lists the topics without reproducing the underlying physics.
Practice exercise
An MRI order arrives. During screening, the patient reports an implanted device from years ago and shows you a wallet card naming the device and model. Nothing has been verified yet. Arrange these steps in a defensible order and identify the step that is never acceptable: (a) keep the patient outside the designated MR safety zones and record the device as not yet cleared; (b) document the device name, model, and year from the card; (c) research and verify the manufacturer's labeling and any device-specific conditions; (d) proceed to the scanner because the patient reports no symptoms.
Show answer
Do (b), then (c). Step (d) is never acceptable. Step (a) touches a real outline topic, but the outline does not state a rule about holding patients outside the zones during verification, so (b) and (c) are the steps you can defend directly from the document.
The outline's screening items call for you to identify and document the device including year, make, and model, research and verify its labeling as MR Safe, MR Conditional, or MR Unsafe, and identify device-specific parameters. Documentation (b) supplies the information verification (c) depends on, so (b) comes first. Proceeding on the absence of symptoms (d) skips the classification the outline requires, so it is the wrong action regardless of how the patient feels. The outline lists designated MR safety zones as an environment topic but does not describe them as a holding area for unverified implants, so step (a) goes beyond what the document states and should not be treated as the tested rule.
Building a weight-aware study plan
A defensible order: start with Image Production and Procedures, which together hold 163 of 200 scored questions, then complete Patient Care and Safety in full, and close with a timed review against the official outline. This ordering is editorial advice built on the published weights, not an ARRT recommendation.
Work through the official content outline as a checklist, marking each topic once you can explain it. Because ARRT builds its exams from many references, it does not recommend or endorse any review program, mock registry, or study guide and does not publish textbook lists, so treat any commercial material as a supplement to the outline rather than a substitute for it.
One boundary is worth naming: the exam assesses the knowledge and cognitive skills behind entry-level MRI tasks. Working through a written guide develops that knowledge, but it does not replace the supervised clinical experience your pathway requires. Keep hands-on preparation within your program's or employer's supervised, authorized setting.
- Phase 1: Image Production, using the outline topics and the four image quality outcomes as your study frame.
- Phase 2: Procedures, covering each listed study through the focus factors the document defines.
- Phase 3: Patient Care and Safety in full, including the screening exercise above.
- Phase 4: A timed mixed review against the outline, revisiting flagged gaps before your exam window.
Official sources: ARRT Magnetic Resonance Imaging Content Specifications effective January 2025 — Examination Content Specifications and content outline, board approved January 2024, implementation February 1, 2025; ARRT 2026 Postprimary Eligibility Pathway Handbook — Eligibility, application, exam format, scheduling, scoring, and security sections
Test-day checklist
Test day runs on administrative rules you can verify in advance: acceptable identification, arrival timing, and the cancellation policy. Getting any of these wrong can cost your fee and your exam window.
Identification failures carry the sharpest penalty. If you arrive without two valid forms of acceptable ID, or your ID name does not match your ARRT file, you will not be allowed to test, you forfeit your application fee, and you must reapply and pay again for a new window. If you must cancel, follow the documented procedure and deadline; missing your appointment or canceling improperly closes your window and forfeits your fee, though it does not count as one of your three attempts.
Build the checklist below into the week before your appointment so nothing depends on test-day memory.
- Confirm two valid forms of acceptable ID, with names matching your ARRT file.
- Arrive 30 minutes before your appointment.
- Leave phones and personal belongings out of the test center.
- Accept the nondisclosure agreement within two minutes of it appearing.
- Flag difficult questions and return to them if time allows.
- Know the cancellation deadline and procedure for your appointment before test day.
Official sources: ARRT 2026 Postprimary Eligibility Pathway Handbook — Eligibility, application, exam format, scheduling, scoring, and security sections
Official sources
Facts checked against ARRT documents: