- The exam has three official content categories: Patient Care (20 scored questions), Image Production (30) and Procedures (65), out of 115 scored.
- Procedures is the largest category, combining Anatomy, Physiology, and Pathology (26) with Mammographic Positioning and Procedures (39).
- The exam delivers 145 questions: 115 scored plus 30 unscored pilot items, with 150 minutes of answering time.
- A passing score is 75 on ARRT's 1-99 scaled range, not 75% of questions correct.
How the Mammography Blueprint Is Built
The Registered Technologist - Mammography credential (RTM on this site) is the ARRT's postprimary Mammography (M) discipline, delivered through Pearson VUE test centers. Every question on the exam traces back to one document: the Mammography Examination Content Specifications, board approved July 2024 (version V.2024.09.09) and effective September 1, 2025. That document splits the exam into three major content categories, and this article walks through each one.
Before the detail, here is the structure at a glance. The exam presents 145 questions, but only 115 are scored. The other 30 are unscored pilot questions that ARRT uses to evaluate future items, and they are not identified on screen. You should answer every question as if it counts.
| Domain | Scored Questions (of 115) | What It Covers |
|---|---|---|
| 1. Patient Care | 20 | Patient interaction, communication, safety and professional responsibilities in the mammography setting |
| 2. Image Production | 30 | Equipment, technical factors, image quality, quality control and image evaluation |
| 3. Procedures | 65 | Anatomy, physiology and pathology (26) plus mammographic positioning and procedures (39) |
Notice that ARRT publishes these as question counts. This guide keeps them as counts rather than converting them into percentages, because the counts are what the issuer actually specifies. If you want to know how the scoring translates to a pass or fail, see our explanation of the RTM passing score.
Domain 1: Patient Care
Patient Care carries 20 of the 115 scored questions, making it the smallest category. Smaller does not mean skippable. Because every scored question contributes equally to your scaled score, 20 questions is a meaningful share of the exam, and these items tend to reward careful reading more than memorization.
What this domain tests in practice
Mammography is an unusually patient-sensitive imaging discipline. Candidates are examined on how they communicate with, prepare and care for the person on the other side of the unit. Expect scenarios rather than pure recall: a patient who is anxious about the procedure, a patient with mobility limitations, a patient who reports symptoms, or a situation in which the technologist must decide what to document and whom to notify.
Patient Care: Topics to Master
Think of this domain as the intersection of clinical communication, safety and professional conduct.
- Explaining the examination, including compression, in language a patient can understand and consent to
- Taking and recording a relevant patient history, including symptoms, prior surgeries, implants and prior imaging
- Adapting the examination for patients with physical limitations, anxiety or special circumstances
- Recognizing when a patient's concern or finding should be passed along rather than interpreted by the technologist
- Maintaining patient privacy and professional ethics, which also ties directly to ARRT's ethics requirements for certification
One pattern to watch for: Patient Care questions often include a plausible-sounding answer that oversteps the technologist's scope. When an option has the technologist diagnosing, reassuring a patient about a result, or interpreting a finding, be skeptical. The technologist's role is to image accurately, communicate professionally and route clinical questions to the right clinician.
Domain 2: Image Production
Image Production accounts for 30 of the 115 scored questions. This is the most technical category and the one where candidates with strong general radiography backgrounds sometimes get surprised, because mammography has its own equipment logic and its own quality-control culture.
Equipment, technique and image quality
Questions here probe whether you understand why a mammogram looks the way it does and how to fix it when it doesn't look right. You will need to reason about the relationship between technical factors and image outcomes, recognize artifacts and their sources, and judge whether an image is acceptable or needs to be repeated.
Image Production: Topics to Master
Focus on cause-and-effect reasoning, not memorized lists.
- How technical factors and equipment settings influence contrast, density and dose in breast imaging
- Compression: its purpose, its effect on image quality and dose, and what inadequate compression looks like on an image
- Common artifacts, how to identify their origin (patient, equipment or processing/display) and how to correct them
- Image evaluation: judging positioning adequacy, exposure, sharpness and whether the required tissue is included
- Quality-control tests and their purpose, including the activities you document during your clinical experience
Because the postprimary pathway requires you to complete all nine prescribed quality-control activities at their required repetition counts, this domain is one where your clinical work and your exam preparation overlap heavily. If you have actually performed and documented the tests, the exam questions about their purpose and interpretation will feel familiar. For candidates who skimmed through QC tasks during clinical, this is the domain to shore up deliberately.
Key Takeaway
For Image Production, practice looking at an image or a description and asking two questions: what went wrong, and what is the single best corrective action? Exam items in this category reward diagnosing the cause before choosing the fix.
Domain 3: Procedures
Procedures is the heart of the exam, with 65 of the 115 scored questions, more than the other two categories combined. It is divided into two sub-areas, and both deserve serious preparation.
Anatomy, Physiology, and Pathology (26 questions)
This sub-area tests the biological foundation of breast imaging. You need to know normal breast anatomy and the structures that appear (or are expected to appear) on a mammogram, how breast tissue changes across life stages, and the pathology you may encounter or need to recognize.
Anatomy, Physiology, and Pathology
Know the normal well enough to recognize the abnormal.
- Breast anatomy: glandular, fibrous and fatty tissue, ducts, lobules, lymphatic drainage and surrounding structures
- Physiologic change: how hormonal status, age and life events affect breast tissue and its appearance
- Benign and malignant pathology: the descriptive language and the imaging appearances associated with common findings
- Risk factors and why certain patient histories matter to the examination
Mammographic Positioning and Procedures (39 questions)
This is the single largest sub-area on the entire exam, and it deserves the biggest slice of your study time. Thirty-nine scored questions on positioning and procedures means that mastery here can carry a large share of your result.
Mammographic Positioning and Procedures
Positioning questions reward spatial reasoning and precise vocabulary.
- Standard projections and their positioning criteria: what a properly positioned image must demonstrate
- Additional and problem-solving views, and when each is used to demonstrate or clarify an area
- Positioning for special circumstances, such as implants, large or small breasts, and limited patient mobility
- Adjunct and supporting procedures a mammography technologist may assist with, and the technologist's role in each
- Recognizing positioning errors from an image description and knowing how to repeat or correct the view
A practical note: this is where candidates who learned mammography strictly on the job can have gaps. You may be excellent at the views your facility performs daily but less familiar with less common projections or special-circumstance techniques. The exam draws from the full content specifications, not from your facility's routine.
Question Formats and Test-Day Mechanics
Knowing the domains is half the battle; knowing how they are tested is the other half. The exam is computer-based and closed book. Most items are single-best-answer multiple choice, but ARRT's handbook describes additional formats you should be ready for: multiple-response items, ordered-response items and image-based questions.
- 145 questions total: 115 scored and 30 unscored pilot questions, mixed together.
- 150 minutes of answering time within a 170-minute appointment that also includes the tutorial, nondisclosure agreement and survey.
- Answer before advancing: you must respond to each item to move on, but you can flag questions and return to them.
- Calculators: basic and scientific on-screen calculators are available, and Pearson can supply a basic four-function calculator on request. Personal calculators are prohibited.
The ordered-response and multiple-response formats are especially relevant to Procedures and Image Production. An ordered-response item might ask you to sequence steps in a positioning workflow; a multiple-response item might ask you to select every criterion that indicates adequate positioning. Practice these formats specifically, because the "pick one" habit can cost you points when an item requires several correct selections.
For a candid look at how demanding the exam really is, read How Hard Is the RTM Exam?, and for logistics on scheduling, see RTM exam dates and testing windows.
Where the Clinical Requirements Reinforce the Domains
The postprimary pathway is unusual because the clinical experience you must document maps neatly onto the three exam domains. Understanding that mapping turns your clinical work into exam preparation.
| Clinical Requirement | Domain It Reinforces |
|---|---|
| Independent mammographic imaging of 75 patients (no phantom or simulated substitutions) | Procedures (positioning) and Patient Care |
| All nine prescribed quality-control activities at required repetition counts | Image Production |
| Review of at least 10 mammography cases with an MQSA-qualified interpreting physician | Image Production (image evaluation) and Procedures (pathology) |
| At least five elective procedures through observation, assistance or participation | Procedures |
A few mechanics are worth knowing. MQSA compliance is required before performing procedures that will count toward your requirements. A maximum of 16 mammographic procedures may be logged per day, and QC documentation is limited to one submission per day per test. You must be physically present for the examinations and procedures, though a qualified clinical verifier does not need to directly observe your work and may verify remotely. For the image-evaluation review, ARRT permits a HIPAA-compliant virtual meeting with a remote interpreting physician while you review the same images on a local monitor, although in-person review is recommended.
For the full eligibility picture, including the 16 hours of structured education within the 24 months before application, see RTM requirements and how to qualify. Fee details, including the $225 initial application and $200 examination reapplication, are laid out in the RTM certification cost breakdown.
Sequencing the Domains in Your Study Plan
Rather than studying the three categories in the order they are listed, sequence them by weight and by dependency. Anatomy underpins positioning, and image-quality reasoning underpins evaluation. Here is one way to build a plan around the blueprint.
Anatomy, Physiology, and Pathology
- Master breast anatomy and tissue types first; every later topic depends on them
- Learn pathology vocabulary and imaging appearances (26 scored questions)
Mammographic Positioning and Procedures
- Work through each projection and its adequacy criteria (39 scored questions)
- Cover additional views, special circumstances and procedure roles
Image Production
- Review technical factors, compression, artifacts and QC rationale (30 scored questions)
- Practice diagnosing image problems and choosing corrections
Patient Care and Full Review
- Cover communication, history-taking, scope of practice and ethics (20 scored questions)
- Take timed practice tests and revisit weak areas across all three domains
This front-loads the highest-weight content while it is fresh and uses the final week for integration. Adjust the timeline to your own schedule and baseline; a technologist who performs mammography daily may compress the positioning block, while someone newer to the modality may extend it. For a one-page recap to use in your last days, see the RTM cheat sheet, and when you are ready to test yourself under realistic conditions, try the RTM practice tests.
After Passing: Renewal and CQR
Understanding the domains also helps you think about the long game. The exam is a milestone, not the finish line. To keep the credential, you maintain certification and registration through annual renewal ($65 regardless of the number of ARRT credentials you hold), continuing compliance with ethics requirements and 24 approved CE credits per two-year biennium. Those CE credits are counted per biennium, not per credential.
Credentials earned on or after January 1, 2011 also fall under Continuing Qualifications Requirements every 10 years, which involve a professional profile, a structured self-assessment and any prescribed CE. ARRT also permits accepting the maximum CQR CE prescription instead of taking the self-assessment. The three exam domains make a useful frame for choosing CE topics that keep your skills current. To weigh whether the credential pays off for your career, see whether the RTM certification is worth it and the RTM salary guide, and for employer-side context, RTM jobs.
Key Takeaway
Weight your preparation to match the blueprint: Procedures first (65 questions), Image Production second (30), Patient Care third (20). But do not neglect any domain, because the 75 passing score is on a scaled range and every scored question counts toward it.
Frequently Asked Questions
Of the 115 scored questions, Patient Care has 20, Image Production has 30 and Procedures has 65. Procedures is made up of Anatomy, Physiology, and Pathology (26) and Mammographic Positioning and Procedures (39). The exam also includes 30 unscored pilot questions, for 145 total.
They are the official major examination content categories from the Mammography Examination Content Specifications, effective September 1, 2025. They are not preparation-curriculum headings invented by a study provider, which is why aligning your study to them matters.
No. The passing score is 75 on ARRT's 1-99 scaled-score range, which is not the same as answering 75% of questions correctly. Scaled scoring accounts for differences in difficulty between exam forms. See our passing score guide for more.
The ARRT Annual Exam Report - 2025 reports 91% passing, rounded, among 1,865 first-attempt candidates for the full year, spanning the September blueprint change. The revised-exam first-time cohort from September 1 to December 31, 2025 had a 90.3% pass rate (n=567). These describe different cohorts, so do not treat 90.3% as the full-year figure. More context is in RTM pass rate: what the data shows.
Procedures, because it holds 65 of the 115 scored questions, and within it, Mammographic Positioning and Procedures at 39 questions is the largest single sub-area. That said, a balanced plan that covers all three categories is the safest approach, since every scored question contributes to your scaled score.
You have three examination attempts within three years of the opening of the initial examination window. Each reapplication costs $200, so building a strong foundation across the domains before your first attempt is worthwhile. Our RTM certification overview explains the full process.