Radiology Quiz with Answers
1. What does X-ray imaging primarily detect?
- A) Soft tissue injuries
- B) Bone fractures
- C) Tumors
- D) Blood clots
Answer: Bone fractures
2. Which of the following is a common X-ray view?
- A) Lateral
- B) Coronal
- C) Sagittal
- D) All of the above
Answer: All of the above
3. What is the purpose of a contrast agent in X-ray imaging?
- A) To reduce exposure
- B) To enhance visibility of structures
- C) To speed up the process
- D) None of the above
Answer: To enhance visibility of structures
4. What is the primary risk associated with X-ray imaging?
- A) Allergic reaction
- B) Radiation exposure
- C) Infection
- D) None of the above
Answer: Radiation exposure
5. What type of film is used for X-ray imaging?
- A) Color film
- B) Black and white film
- C) Digital sensor
- D) Both B and C
Answer: Both B and C
6. What does a radiologist primarily do?
- A) Perform surgeries
- B) Interpret imaging studies
- C) Administer medication
- D) Conduct physical exams
Answer: Interpret imaging studies
7. What is fluoroscopy?
- A) A type of X-ray that shows moving images
- B) A static X-ray
- C) An MRI technique
- D) A CT scan
Answer: A type of X-ray that shows moving images
8. What is the maximum safe exposure for X-ray workers?
- A) 1 mSv/year
- B) 20 mSv/year
- C) 50 mSv/year
- D) 100 mSv/year
Answer: 20 mSv/year
9. What is the standard projection for chest X-rays?
- A) AP
- B) PA
- C) Lateral
- D) Oblique
Answer: PA
10. What does the term "radiopacity" refer to?
- A) The ability to absorb X-rays
- B) The visibility of soft tissues
- C) The speed of imaging
- D) None of the above
Answer: The ability to absorb X-rays
11. What is the primary principle behind MRI?
- A) X-ray absorption
- B) Magnetic fields and radio waves
- C) Ultrasound reflection
- D) None of the above
Answer: Magnetic fields and radio waves
12. What is a common use for MRI?
- A) Examining bone fractures
- B) Evaluating soft tissue
- C) Measuring blood pressure
- D) None of the above
Answer: Evaluating soft tissue
13. What does T1-weighted imaging highlight?
- A) Fat and water signal differences
- B) Blood flow
- C) Bone structures
- D) Muscle tissue
Answer: Fat and water signal differences
14. Which of the following is a contraindication for MRI?
- A) Metal implants
- B) Claustrophobia
- C) Pregnancy
- D) All of the above
Answer: All of the above
15. What type of coil is commonly used in MRI?
- A) Surface coil
- B) Volume coil
- C) Both A and B
- D) None of the above
Answer: Both A and B
16. What is the primary purpose of a CT scan?
- A) To assess soft tissues
- B) To detect fractures
- C) To provide detailed cross-sectional images
- D) To measure blood flow
Answer: To provide detailed cross-sectional images
17. What does a CT scan use to create images?
- A) Radio waves
- B) X-rays
- C) Sound waves
- D) None of the above
Answer: X-rays
18. How does a CT scan differ from a traditional X-ray?
- A) CT provides 3D images
- B) CT uses less radiation
- C) CT requires more time
- D) CT cannot detect tumors
Answer: CT provides 3D images
19. What is the typical radiation dose of a CT scan compared to an X-ray?
- A) Lower
- B) Similar
- C) Higher
- D) Negligible
Answer: Higher
20. Which organ is often evaluated using CT scans for cancer detection?
- A) Heart
- B) Liver
- C) Lungs
- D) All of the above
Answer: All of the above
21. What does the term "windowing" refer to in CT imaging?
- A) Adjusting brightness and contrast
- B) Changing the scanning angle
- C) Altering the slice thickness
- D) None of the above
Answer: Adjusting brightness and contrast
22. What is a CT angiography used for?
- A) To visualize blood vessels
- B) To assess bone fractures
- C) To measure organ size
- D) None of the above
Answer: To visualize blood vessels
23. What does "multidetector CT" refer to?
- A) A single slice CT scanner
- B) A scanner with multiple detectors for faster imaging
- C) A type of MRI machine
- D) None of the above
Answer: A scanner with multiple detectors for faster imaging
24. What is the primary risk associated with CT scans?
- A) Allergic reaction
- B) Radiation exposure
- C) Infection
- D) None of the above
Answer: Radiation exposure
25. What is the typical contrast agent used in CT scans?
- A) Iodine-based
- B) Barium
- C) Gadolinium
- D) None of the above
Answer: Iodine-based
26. What is the main purpose of a darkroom in radiology?
- A) To develop X-ray films
- B) To store X-ray equipment
- C) To perform CT scans
- D) None of the above
Answer: To develop X-ray films
27. Which light is used in the darkroom to avoid exposing the film?
- A) White light
- B) Red light
- C) Blue light
- D) Green light
Answer: Red light
28. What is the role of a developer in film processing?
- A) To fix the image
- B) To create the image
- C) To rinse the film
- D) To dry the film
Answer: To create the image
29. What chemical is commonly used as a fixer in darkroom processing?
- A) Sodium bicarbonate
- B) Acetic acid
- C) Ammonium thiosulfate
- D) Hydrochloric acid
Answer: Ammonium thiosulfate
30. Which piece of equipment is essential for developing X-ray films?
- A) Film processor
- B) X-ray machine
- C) CT scanner
- D) MRI machine
Answer: Film processor
31. What temperature is typically used for developing films?
- A) 18°C
- B) 20°C
- C) 24°C
- D) 30°C
Answer: 20°C
32. What is the primary risk in a darkroom?
- A) Chemical exposure
- B) Radiation exposure
- C) Electrical hazards
- D) None of the above
Answer: Chemical exposure
33. What is the purpose of the wash step in film processing?
- A) To enhance the image
- B) To remove chemicals from the film
- C) To dry the film
- D) None of the above
Answer: To remove chemicals from the film
34. How long does the entire film developing process typically take?
- A) 5 minutes
- B) 15 minutes
- C) 30 minutes
- D) 1 hour
Answer: 15 minutes
35. Which type of film is most commonly used in radiology?
- A) Color film
- B) Black and white film
- C) Instant film
- D) Digital film
Answer: Black and white film
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