CT study guide
CT · Work through your exam, one topic at a time.
ARRT certification and registration in Computed Tomography (CT) is a postprimary credential. ARRT describes its purpose as recognizing individuals who are qualified to perform the role of a computed tomographer. It is aimed at technologists who already hold ARRT credentials in an approved supporting discipline; in some cases the supporting credential may be earned through another organization, and ARRT notes that holders of a Nuclear Medicine Technology credential from the Nuclear Medicine Technology Certification Board (NMTCB) who are not already R.T.s can submit an online account access form to get started. Day to day, CT technologists commonly work in a hospital or imaging center, scanning all parts of the body for disease diagnosis, acute conditions, and emergency injury assessment, while balancing image quality against radiation dose and helping inform and calm nervous patients. The CT study guide has 4 sections and about 1,153 words.
01Patient Care and Safety
Patient Care and Safety in CT tests whether you can screen patients, choose contrast safely, protect from unnecessary radiation, and manage events during and after injection. The emphasis is practical: what you do before the scan, what you monitor, and what you document.
284 words, about 1 min02Imaging Procedures and Equipment
Imaging Procedures and Equipment in CT tests protocol selection, patient positioning, contrast timing, and safe operation of the gantry, power injector, and detector system. The exam favors the sequence of steps that produces diagnostic images without overscan.
290 words, about 1 min03Physics and Instrumentation
Physics and Instrumentation in CT tests x-ray production, attenuation, detector geometry, pitch, and reconstruction. You need to connect tube settings to dose and image quality rather than memorize isolated numbers.
298 words, about 1 min04Image Production and Evaluation
Image Production and Evaluation in CT tests reconstruction, display, quality metrics, and artifact recognition. The goal is to judge whether an image is diagnostic and to explain why a parameter change helps or hurts.
281 words, about 1 min