ARRT CT Practice Test 2026 — Free ARRT CT Exam Prep Questions
The ARRT Computed Tomography exam is the postprimary credentialing exam technologists pass to earn the R.T.(CT) credential. Our practice set follows ARRT's 2026 CT content specifications, with worked dose (CTDIvol, DLP, effective dose), pixel-size and contrast calculations plus protocol, artifact and cross-sectional procedure scenarios.
An adrenal protocol CT measures a nodule at 20 HU unenhanced, 80 HU in the portal venous phase and 35 HU on 15-minute delayed images. What is the absolute percentage washout, and what does it suggest?
ARRT CT format, scoring & key facts
Facts last verified Oct 5, 2026. Source: assets-us-01.kc-usercontent.com/406ac8c6-58e8-00b3-e3c1-0c312965deb2/7e8095ab-e424-496d-a5d4-d1e951d5783b/CT_Content_Specifications_2026.pdf. Always confirm details with ARRT before your exam.
When can you take the ARRT CT?
Plan backwards from your exam date
What the ARRT CT covers
Every PrepBanq ARRT CT test mirrors the official domain weights.
Domain distribution
% of the exam| Content domain | Weight | ≈ Questions on exam | Our practice questions |
|---|---|---|---|
Patient CarePatient interactions and management: screening, lab values, consent, time-out, monitoring, contrast media and medications, power injection, scan timing and contrast reactions (21 scored questions). | 12.7% | ~21 | 3 questions → |
SafetyRadiation safety and dose: x-ray physics and photon interactions, minimizing patient exposure, dose modulation, CTDI/DLP/effective dose, dose alerts and adverse event reporting (21 scored questions). | 12.7% | ~21 | 3 questions → |
Image ProductionImage formation (CT unit components, parameters, acquisition, reconstruction, postprocessing) and image evaluation and archiving (display, image quality, artifacts, informatics) (52 scored questions). | 31.5% | ~52 | 8 questions → |
ProceduresHead, spine and musculoskeletal; neck and chest (including cardiac); abdomen and pelvis studies: anatomy, protocols, contrast timing and special procedures (71 scored questions). | 43.1% | ~71 | 11 questions → |
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ARRT CT FAQ
How many questions are on the ARRT CT?
The ARRT CT has 195 questions (165 of them scored).
What is on the ARRT CT?
The ARRT CT covers Patient Care (about 12.7%), Safety (about 12.7%), Image Production (about 31.5%), Procedures (about 43.1%).
Who administers the ARRT CT?
The ARRT Computed Tomography (CT) Exam is administered by ARRT.
Is there a free ARRT CT practice test?
Yes. PrepBanq has 3 free ARRT CT practice tests with 25 exam-style questions in the real ARRT CT formats, and every answer is explained. No credit card is needed.
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