2024 Edition

Radiology Tech Practice Test

Try this free radiology tech practice test to see what's on a licensing or certification exam for x-ray techs.

Most states require that a radiographer be certified or licensed.  The American Registry of Radiologic Technologists (ARRT) certifies and registers radiology technologists and administers the required exams. The exam to become certified as a radiologist tech has 230 multiple choice questions and you are given 3 hours and fifty minutes to complete the exam. The exam covers the following subjects: patient care; safety; image production and procedures.

To prepare for your test, use our 500 question Radiology Tech Practice Test that includes flash cards and an exam review.


Patient Care in Radiology

1. A patient comes in for a radiologic exam and requires an intravenous injection of contrast. What is the normal range for creatinine?
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2. In which position should the patient be placed if they have a syncopal episode and low blood pressure?
3. Consider a patient with a long bone fracture. Which of the following is the most appropriate method of manipulating the affected extremity for imaging purposes (for example, to place the image receptor under the affected extremity)?
4. Which of the following is an essential lab value that must be verified prior to administering intravenous iodinated contrast media, as it provides information on a patient's kidney function?
5. Which of the following is a type of manual respirator?
6. RT Jones leaves a patient on the exam table unattended. This is most likely an example of:
7. A patient is having a CAT scan of the head. After injecting contrast, the patient complains of nausea and having problems breathing. What type of shock is the patient experiencing?
8. What is the function of the housing around an x-ray tube?
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9. The reddening of irritated skin due to radiation is called what?
10. What is the position when a patient lies flat on their back and the head is lower than the feet?
11. When a patient is having a barium enema, what are the instructions after the examination?
12. The best time to use the log rolling method to move a patient is when the patient may have:

Radiation and Safety

13. When parts of the body are being imaged, what restricts the useful x- ray beams from causing unnecessary exposure?
14. Which target interaction is caused by deceleration of a cathode electron?
15. Which biological effects of radiation are random in occurrence?
16. Which of the following is the unit for radiation dose equivalent?
17. Which of the following will help reduce radiation exposure to the patient?
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18. Leakage radiation may not exceed _______ at a distance of 1 meter from the X-ray source.
19. A unit of measuring radiation is REM. What does REM stand for?
20. According to the NCRP (National Council on Radiation Protection and Measurements), what is the minimum lead requirement for lead aprons?
21. Of the total radiation exposure of the general public, what percentage comes from medical and dental radiation?
22. What is a principle of radioprotection stating that whenever ionizing radiation has to be applied to humans it should be as far below the dose limits as practical?
23. What is one of the duties of a Radiation Safety Officer?
24. What is a chemical substance that kills pathogenic bacteria?

Image Production

25. Which of the following is considered a geometric factor that causes unequal magnification of different portions of the same object?
26. Which of the following changes are necessary when imaging a patient in a dry fiberglass cast?
27. Which of the following would contribute to the appearance of quantum mottle (image noise) on a digital radiograph?
28. Which post-processing technique sharpens the outlines of anatomical structures on the radiograph?
29. Which mA range is used for fluoroscopic procedures?
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30. How frequently should computed radiography (CR) image receptors be erased?
31. What is best way to only change the density on an x-ray image?
32. In what year did Thomas Edison invent fluoroscopy?
33. What is the best way to alter the quality of an x-ray beam?
34. Which of the following is not part of a quality assurance program?
35. What is the proper way to view a radiograph?
36. A system used to view radiographs is called PACS. What does PACS stands for?

Procedures in Radiology

37. A patient comes in complaining of abdominal pain and the doctor orders an x-ray of the abdomen. Afterwards, you compare it to the last image the patient had taken and you see this x-ray. What is the name of this x-ray position?
38. A female patient comes in with fertility problems. The doctor orders a hysterosalpingogram. When is the best time to perform this procedure?
39. On a poster-anterior chest radiograph, which of the following should be included on the x-ray?
40. A patient comes into the ER and has a skull x-ray taken. Which bone is fractured in this skull x-ray?
41. What is it when the stomach protrudes through cardiac orifice through tear of the diaphragm?
42. How is this shoulder positioned?
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43. A female patient comes in for an x-ray procedure with the Diagnoses of GERD. What does GERD stand for?
44. Which bone is broken in this oblique of the hand?
45. What condition does this patient have?
46. Which reference line is placed perpendicular to the image receptor for the PA axial projection of the skull (Caldwell method)?
47. Which of the following positions/projections will best demonstrate the esophagus during a barium swallow fluoroscopic exam?
48. What is the most commonly-fractured carpal bone?
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49. How should the patient's lower extremity be positioned for the AP projection of the hip?
50. Evaluate the left lateral chest radiograph below. Which of the following procedural errors is evident?

Quality starts with who wrote the material.
Our practice exam writer
Michael Pallanti, R.T.(R)(ARRT),
is a radiology manager with over fifteen years of experience in multiple roles in radiography, including advanced radiologic technologist education at Penn Medicine in Pennsylvania. 

Jewell Evans, R.T.(R)(M)(ARRT),
is an adjunct instructor in radiology in the Radiology Technology department at Pasadena City College, and is a lead mammography technologist.

Angela Casillas, R.T.(R)(ARRT),
is a clincial instructor in Radiology Technology at Del Mar College in Texas and has been a practicing radiologic technologist for over ten years.


The ARRT certification exam contains 220 multiple-choice questions. A test taker is give 3.5 hours to complete the exam and a score of 75 is needed to pass.

Below are the four domains tested by the ARRT:
• Patient Care
• Safety
• Image Production
• Procedures