General Radiology Concepts & Techniques QUIZ

Question 1

Which of the following is/are recognized as “late effects” damage caused by radiation?
1. all choices are correct
2. gene mutation in individual or offspring
3. cataracts
4. cancer

Answer 1

1. all choices are correct

Question 2

When an animal’s thorax is radiographed with patient lying on back, which marker(s) should be used?
1. VD marker and either R or L
2. DV marker and either R or L
3. DV marker only
4. VD marker only

Answer 2

1. VD marker and either R or L

Question 3

An artifact that can occur with either flat-film or CR digital technology is
1. all choices are correct
2. motion artifact
3. superimposition artifact
4. white light exposure prior to processing

Answer 3

1. all choices are correct

Question 4

Uberschwinger artifact in digital radiography is due to
1. metal in view
2. 60 cycle electrical interference
3. white light exposure
4. patient movement

Answer 4

1. metal in view

Question 5

DICOM Standards refers to
1. transmission of medical images
2. radiation safety
3. archiving and communication systems
4. type of computer that stores radiographic images

Answer 5

1. transmission of medical images

Question 6

Choose all parameters that are methods for decreasing scatter.
1. No metal on patient
2. Collimate to area of interest only
3. Use of a grid when imaging thick/dense body parts
4. high mAs
5. high kVp

Answer 6

1. No metal on patient
2. Collimate to area of interest only
3. Use of a grid when imaging thick/dense body parts

Question 6

Film Exposure Index is an estimate of
1. technique (x-ray exposure to cassette)
2. scatter
3. lifespan of digital cassette
4. movement of the patient

Answer 6

1. technique (x-ray exposure to cassette)

Question 7

What is the approximate age of this canine Greyhound patient if there are no fractures present?
1. juvenile (less than 1 yr)
2. adult (more than 2 yrs)
3. it can’t be determined from this image
4. senior (more than 7 years)

Answer 7

1. juvenile (less than 1 yr)

Question 8

Name three positioning aids for radiography and an example of when used.

Aid.
Use:

Answer 8

1. V-troph
   Use: VD views
2. Sandbags
   Use: Weigh down limbs of patient for positioning
3. Towels
   Use: Patient comfort (make pillow, place between legs)

Question 9

The DVM has ordered a “met check” for a 14-year-old feline patient. You will acquire which images?
1. VD, right and left lateral thorax
2. DV, right and left lateral thorax
3. whole body VD and right lateral
4. DV and left lateral abdomen (including all of liver)

Answer 9

1. VD, right and left lateral thorax

Question 10

List 5 preparation steps prior to taking a radiograph of any animal.

Answer 10

1. Get machine set up as much as possible/confirm view being taken.
2. Lead on before getting patient.
3. If taking view of abdomen, take outside to have patient empty colon (and bladder if that isn’t the focus of the image).
4. Get patient restraints out that you may need to use.
5. Administer sedatives to patient if needed for taking the view(s).