Part of the expanding PassProfessor catalog: PassProfessor’s ARRT CT program is part of the expanding PassProfessor catalog — a practice program being built for the American Registry of Radiologic Technologists’ postprimary Computed Tomography examination, organized around the four content categories in ARRT’s current content specifications. Enrollment is not open yet. Join the notify list and we will email you when enrollment opens.
This program is part of the expanding PassProfessor catalog — join the notify list and we’ll email you when enrollment opens.
The Computed Tomography examination from the American Registry of Radiologic Technologists (ARRT) is a postprimary credential for technologists who already hold a supporting ARRT credential. It administers 165 scored questions — Patient Care (21), Safety (21), Image Production (52), and Procedures (71) — plus 30 unscored pilot questions, under the content specifications in effect since September 1, 2026. ARRT reports scores on a 1–99 scale; a total scaled score of 75 passes. PassProfessor’s ARRT CT Exam Prep is being built for that examination, organized category by category against ARRT’s specifications.
This is a postprimary credential — you arrive already credentialed
ARRT’s CT certification does not start a career in imaging; it extends one. Eligibility runs through ARRT’s postprimary eligibility pathway, and its first requirement is that you already hold a supporting credential: current ARRT registration in Radiography, Nuclear Medicine Technology, or Radiation Therapy — with the Nuclear Medicine Technology credential from the NMTCB also accepted as the supporting credential for that route. A candidate without one of those credentials is not yet eligible for the CT examination, whatever their CT experience — the supporting credential comes first, and this program assumes it.
On top of the supporting credential, ARRT requires two documented preparation steps, both completed within the 24 months before you apply. Structured education: 16 hours of ARRT-recognized structured education in CT, with at least one credit hour in each of the four content categories — Patient Care, Safety, Image Production, and Procedures. Clinical experience: documented performance of CT procedures under ARRT’s clinical experience requirements — a minimum of 125 repetitions, drawn from at least 25 different procedures on ARRT’s 67-procedure list, with between 3 and 5 repetitions counted per chosen procedure and at least 30 repetitions performed with iodinated intravenous contrast media. Candidates must also meet ARRT’s ethics requirements. The examination is the last step of the pathway, not the first — and the candidates who plan well sequence education, clinical documentation, and exam preparation together rather than discovering the paperwork after the studying.
What is this program being built to cover?
The four content categories, at ARRT’s published question counts. Procedures is the examination’s center at 71 of 165 scored questions, and Image Production is second at 52; Patient Care and Safety carry 21 each under the specifications effective September 1, 2026. The program in development is organized on that same map, so practice results can be read category by category and a thin category shows while there is still time to repair it.
Procedures across the body. The Procedures category divides into Head, Spine, and Musculoskeletal (25 questions), Neck and Chest (22), and Abdomen and Pelvis (24): cross-sectional anatomy, positioning, scan protocols, and contrast timing for the examinations working CT technologists actually perform. Image Production across the chain. The Image Production category divides into Image Formation (30) and Image Evaluation and Archiving (22): how the scanner acquires and reconstructs, how image quality is judged, and how artifacts are recognized and corrected. Preparation is being built to that standard: protocol-and-anatomy reasoning and physics-and-image reasoning alike, in the proportions ARRT publishes.
The honest format note. ARRT examinations are computer-based, delivered through Pearson VUE, and consist mainly of multiple-choice items. No practice program’s format is the sitting; what practice can do, and what this program is built to do, is make the underlying knowledge fluent category by category, at the exam’s own weights.
The program at a glance
| ARRT CT program | Detail |
|---|---|
| Credential served | Computed Tomography (CT), awarded by the American Registry of Radiologic Technologists (ARRT) through the postprimary eligibility pathway |
| Built to | ARRT’s Examination Content Specifications for Computed Tomography in effect since September 1, 2026 — four content categories, 165 scored questions |
| Categories | Patient Care · Safety · Image Production · Procedures |
| Price | No price is stated for this program |
| Status | In the works — program in development; enrollment opens through the notify list |
The real exam at a glance
| Fact of record | ARRT Computed Tomography |
|---|---|
| Scored questions | 165 |
| Pilot questions | 30 additional unscored questions (195 presented in total) |
| Testing time | 195 minutes of testing time within a 3-hour 35-minute appointment |
| Delivery | Pearson VUE, computer-based |
| Content categories (scored) | Patient Care 21 · Safety 21 · Image Production 52 · Procedures 71 |
| Passing score | Total scaled score of 75 on ARRT’s 1–99 scale — across the whole exam |
| Eligibility | Postprimary pathway: supporting ARRT credential in Radiography, Nuclear Medicine Technology, or Radiation Therapy (NMTCB credential accepted for the nuclear medicine route), plus ARRT’s ethics requirements |
| Structured education | 16 hours within the 24 months before application, at least 1 hour in each content category |
| Clinical experience | Minimum 125 documented repetitions (at least 25 different procedures from ARRT’s 67-procedure list; at least 30 with iodinated IV contrast), within the 24 months before application |
Read the passing-score row exactly as ARRT publishes it: a scaled score of 75 on a 1–99 scale. It is not a percentage of questions correct, and it cannot be converted into one — ARRT states that the number of correct answers needed for a scaled 75 varies from one exam version to another. The standard applies to the whole examination at once, so margin across all four categories is the only honest readiness measure.
How the four categories divide the exam
| Content category (ARRT specs, eff. Sept 1, 2026) | Scored questions |
|---|---|
| Patient Care — Patient Interactions and Management | 21 |
| Safety — Radiation Safety and Dose | 21 |
| Image Production — Image Formation (30) · Image Evaluation and Archiving (22) | 52 |
| Procedures — Head, Spine, and Musculoskeletal (25) · Neck and Chest (22) · Abdomen and Pelvis (24) | 71 |
Patient Care (21). One subcategory in the current specifications — patient interactions and management: assessment and preparation, contrast and medication considerations including screening and reaction management, monitoring, and postprocedure care. It is the category where CT practice touches the patient most directly, and its questions reward screening discipline.
Safety (21). Radiation safety and dose: radiation physics as it bears on protection, dose measurement and description (including CTDIvol and dose-length product), dose optimization, and protection of patients and personnel — with particular care for dose-sensitive situations. CT’s dose profile makes this category professionally central out of proportion to its 21 questions.
Image Production (52). The physics-and-systems half of the exam’s identity: image formation — scanner components, data acquisition, reconstruction — and image evaluation and archiving — image quality, artifacts and their correction, display, and quality assurance. Candidates strong in protocols but thin in physics meet their exam here.
Procedures (71). The largest category: anatomy, positioning, protocols, and scan ranges for head, spine, and musculoskeletal studies; neck and chest studies; and abdomen and pelvis studies. It tests the working repertoire of the CT suite, and its 71 questions reward broad, recent, hands-on familiarity organized by body region.
How to use it
- Join the notify list today. The program is in development and enrollment is not open yet; the notify list is how you hear the moment it is. While you wait, read the ARRT CT exam guide — it walks the postprimary pathway, all four categories, and the scaled-75 standard in depth.
- Sequence the pathway first. Confirm your supporting credential, structured education, and clinical documentation are on ARRT’s clock — both preparation steps must fall within the 24 months before application — then let exam preparation fill the remaining runway.
- Survey all four categories first. Early practice should touch patient care through procedures alike, so your first category-by-category picture is honest rather than flattering.
- Give Procedures and Image Production their combined weight. Together they are 123 of 165 scored questions — three quarters of the sitting. Protocols and physics are not two subjects here; they are the exam.
- Finish with a full, timed rehearsal at the sitting’s length. Test when every category is consistently strong — remembering the standard is a scaled 75 across the whole exam, not a percentage, so margin across categories is the only honest readiness measure. Where this program uses 70 in practice scoring, 70 is a PRACTICE BENCHMARK ONLY: a study target we set, not ARRT’s standard.
Frequently asked questions
Who is eligible for the ARRT CT exam? Technologists who already hold a supporting credential — ARRT registration in Radiography, Nuclear Medicine Technology, or Radiation Therapy (an NMTCB credential is accepted for the nuclear medicine route) — and who meet ARRT’s ethics requirements, complete 16 hours of structured education, and document the required clinical experience, all under the postprimary eligibility pathway. CT is not an entry-level credential.
How many questions are on the CT exam, and how long is the sitting? 165 scored questions, plus 30 unscored pilot questions mixed through the sitting unidentified — 195 presented in total. ARRT schedules 195 minutes of testing time within a 3-hour 35-minute appointment, at Pearson VUE test centers.
What score do I need to pass? A total scaled score of 75, on ARRT’s 1–99 scale, as ARRT publishes it. A scaled 75 is not 75% correct: ARRT states that the number of correct answers behind a scaled 75 varies by exam version. In this program, 70 is a PRACTICE BENCHMARK ONLY — a study target, not ARRT’s standard.
What are the four content categories and their counts? Patient Care 21; Safety 21; Image Production 52 (Image Formation 30, Image Evaluation and Archiving 22); Procedures 71 (Head, Spine, and Musculoskeletal 25; Neck and Chest 22; Abdomen and Pelvis 24) — 165 scored questions under the specifications in effect since September 1, 2026.
What clinical experience must I document? A minimum of 125 repetitions of CT procedures, chosen from at least 25 different procedures on ARRT’s 67-procedure list, with 3 to 5 repetitions counted per chosen procedure and at least 30 repetitions performed with iodinated IV contrast media — completed within the 24 months before you apply, under ARRT’s clinical experience requirements.
What structured education is required? 16 hours of ARRT-recognized structured education in CT, including at least one credit hour in each of the four content categories, completed within the 24 months before application.
What does the program cost? No price is stated for this program. The program is in development, and this page publishes no price for it. Any price, when decided, will be the PassProfessor program price only — not ARRT’s examination fee, which this page does not state.
How many practice questions will the program include? This page states no count, because the program and its bank are in development and are not presented as finished. The program’s stated ground is ARRT’s current CT content specifications across all four categories.
When will enrollment open? The program is in development as part of the expanding PassProfessor catalog. Join the notify list on this page and we will email you when enrollment opens. We are not publishing a date we cannot keep.
Disclaimer
PassProfessor is an independent exam-preparation provider; ARRT does not endorse this program, and PassProfessor is not affiliated with or sponsored by the American Registry of Radiologic Technologists. ARRT and R.T. are used on this page as factual references to ARRT’s credentials. This program is examination preparation only: it provides no certification, satisfies none of ARRT’s structured-education or clinical-experience requirements, and provides no clinical instruction or patient-care advice. The credential is awarded solely by ARRT to candidates who meet its requirements. Examination details on this page are limited to the verified record described in the guide and are current as of November 2026; ARRT’s official publications govern if anything here differs from them.