1. What type of radiation is used in CT scans?
a) Gamma radiation
b) X-ray radiation
c) Ultraviolet radiation
d) Infrared radiation
2. What does CT stand for in the term "CT scan"?
a) Computed Tomography
b) Computerized Transmission
c) Computerized Technology
d) Computed Transmission
3. How does a CT scan produce images of the body?
a) By using a single X-ray beam
b) By using multiple X-ray beams and a computer
c) By using ultrasound waves
d) By using magnetic fields
4. What is the main advantage of CT scans over traditional X-ray imaging?
a) CT scans can produce 3D images
b) CT scans are less expensive
c) CT scans use less radiation
d) CT scans are faster
5. How is the radiation dose in a CT scan controlled?
a) By adjusting the X-ray energy
b) By adjusting the duration of the scan
c) By adjusting the number of scans
d) All of the above
6. What is the typical range of radiation dose for a CT scan?
a) 0.1 mSv to 10 mSv
b) 10 mSv to 50 mSv
c) 50 mSv to 100 mSv
d) 100 mSv to 500 mSv
7. What are some of the risks associated with CT scans?
a) Increased risk of cancer
b) Increased risk of radiation-induced cataracts
c) Increased risk of skin burns
d) All of the above
8. CT scans are used to diagnose many types of conditions, including:
a) Cancer
b) Tumors
c) Trauma
d) All of the above
9. CT scans are contraindicated in certain individuals, including:
a) Pregnant women
b) Children
c) Elderly individuals
d) All of the above
10. Who should be consulted before getting a CT scan?
a) A radiologist
b) A primary care physician
c) A radiation safety officer
d) All of the above
Answers:
1-b
2-a
3-b
4-a
5-d
6-a
7-d
8-d
9-d
10-d