Exam Questions and CORRECT Answers
A bladder stone is hyperechoic. What type of image does this project on the ultrasound
monitor? - CORRECT ANSWER- Bright white image
A urine-filled bladder is usually best classified? - CORRECT ANSWER- Anechoic
The tungsten plate(target) is located where on the x-ray machine? - CORRECT ANSWER-
Anode
In an X-ray tube, x-rays are formed on the? - CORRECT ANSWER- Tungsten target on the
anode
Anyone working with, or in the near vicinity of, an x-ray machine should use - CORRECT
ANSWER- A dosimetry badge
The distance between the X-ray tube and the film is the? - CORRECT ANSWER- Focal-film
distance
the focal spot is? - CORRECT ANSWER- The spot on the tungsten target that the electron
beam is aimed at
the unit of radiation exposure rad stands for? - CORRECT ANSWER- Radiation absorbed
dose
what can cause series of parallel white lines on the developed radiograph? - CORRECT
ANSWER- The grid
when positioning an animal for radiographs, it is the best to place the thicker portion of the
patient toward__of the tube to produce a radiograph with uniform density? - CORRECT
ANSWER- The cathode end
, Most x-ray film cassettes now have what kind of screens that glow when irradiated? -
CORRECT ANSWER- Intensifying screens
High kPv produces? - CORRECT ANSWER- A long scale of contrast
low kVp produces? - CORRECT ANSWER- A short scale of contrast
the annual maximum permissible dose (MPD) standard of radiation for anyone working with
radiation is? - CORRECT ANSWER- 5 rem
Which of the following would do the most to minimize scatter radiation? - CORRECT
ANSWER- The collimator is narrowed
if the finished radiograph is too light, a probable cause is? - CORRECT ANSWER- focal-
film distance is too long
you have accidentally put two sheets of x-ray film in a cassette. you did not notice this until
after you have taken a very difficult shot, without having to take a second shot, what is the
best option for the veterinarian to successfully evaluate the radiograph? - CORRECT
ANSWER- Develop both films and overlay them for the veterinarian to evaluate
If the finished radiograph has whites splotches on it, the most likely cause is? - CORRECT
ANSWER- spots of fixer on the film
clear edges on a finished radiograph may be caused by? - CORRECT ANSWER- A
misaligned Bucky tray
A focal-film distance that is too short causes the radiographed image to? - CORRECT
ANSWER- appear to dark
when radiographing a distal extremity, a __scake of contrast is best - CORRECT ANSWER-
short
Dosimetry badges should be? - CORRECT ANSWER- worn on the collar outside the apron