ARRT: Computed Tomography (CT) Certification Examination Practice Test
Gana confianza para ARRT: Computed Tomography (CT) Certification Examination. Practica los conceptos, comprende las respuestas y refuerza tus conocimientos pregunta a pregunta.
Probar una preguntaDescripción y detalles del examen
The ARRT Computed Tomography (CT) Certification Examination is the nationally recognized credential for radiologic technologists specializing in computed tomography. Administered by the American Registry of Radiologic Technologists (ARRT), this certification validates a technologist's advanced knowledge, technical proficiency, and commitment to patient safety in CT imaging. Earning the credential demonstrates mastery across the entire CT process, from patient preparation and contrast administration to protocol optimization, image acquisition, and advanced post-processing. It signifies adherence to the highest professional standards in radiation safety, anatomy, pathology, and instrumentation. In an era of rapid technological advancement and increasing clinical complexity, the ARRT CT certification distinguishes technologists as experts capable of producing high-quality diagnostic images essential for accurate patient diagnosis and treatment planning. This credential is often a prerequisite for employment in hospital-based CT departments, outpatient imaging centers, and specialized facilities, solidifying the holder's role as a critical member of the diagnostic imaging team.
Preguntas de Muestra
Elige una respuesta y consulta la explicación para ver cómo funciona la práctica.
Six hours after CT with iodinated contrast, a patient calls with a mild pruritic maculopapular rash but no dyspnea or swelling. Which timing label is most appropriate?
A technologist wants to reduce dose in a renal stone CT while preserving stone detection. Which strategy is most appropriate?
Which noncontrast CT exam is commonly first-line for suspected ureteral stone in a nonpregnant adult?
A trauma patient has hypotension and suspected active abdominal bleeding. Which contrast phase is most important for detecting arterial extravasation?
A technologist reconstructs 5 mm abdomen images every 5 mm, but the radiologist needs smoother coronal reformats. What change best supports MPR quality without increasing acquisition dose?
Oportunidades profesionales y salario
Los rangos son cifras del mercado de EE. UU. salvo que se muestre un rango local.
Qué temas cubre este examen
Usa las ponderaciones publicadas de los dominios para planificar tu estudio. Los resultados de práctica no predicen tu puntuación en el examen de certificación.
01Image Production
Temas
- CT unit components, detector arrays, DAS, slip rings, and acquisition geometry
- axial, helical, volumetric, cine, dual-energy, dual-source, and photon-counting CT
- filtered back projection, vendor iterative reconstruction, model-based IR, and deep learning reconstruction
- reconstruction slice thickness, interval, kernel, raw data, image data, interpolation, and MPR
- HU values, matrix, pixel, voxel, DFOV, SFOV, window width, window level, and ROI measurement
- beam hardening, partial volume, motion, ring, metal, edge-gradient, and cone-beam artifacts
02Patient Care and Education
03Procedures
Temas
- head, stroke, brain perfusion, CTA, CTV, temporal bone, sinus, orbit, maxillofacial, and spine CT
- neck, chest, CTPA, HRCT, low-dose lung screening, cardiac CT, airway, mediastinum, and chest wall CT
- abdomen and pelvis including liver, pancreas, renal mass, CT urogram, renal stone, appendicitis, trauma, and bowel protocols
- vascular CTA and CTV including dissection, runoff, mesenteric ischemia, venous thrombosis, and active bleeding
- musculoskeletal CT, arthrography, fracture assessment, joint planning, and multiplanar or 3D orthopedic reconstructions
- CT-guided biopsy, drainage, aspiration, procedural consent, coagulation status, monitoring, and complication recognition
04Safety
Temas
- ALARA, Image Gently, Image Wisely, and pediatric protocol optimization
- CTDIvol, DLP, SSDE, phantom size, diagnostic reference levels, and dose reports
- kVp, mA, mAs, pitch, rotation time, collimation, scan length, and dose modulation
- dose notification, dose alert, Dose Check, and dose-management review
- pregnancy, occupational exposure, shielding, AEC, centering, and overranging
- repeat prevention through motion control, breath-hold coaching, and validated protocols