Veterinary Radiography Ch. 8
Chapter 8 questions radiography in veterinary technology (4th ed. ) - Lisa M Lavin
- 1.The degree of blackness on the radiograph is
- A.
Contrast
- B.
Quality
- C.
MAs
- D.
Density
- 2.Density is determined primarily by
- A.
MAs
- B.
KVp
- C.
Exposure time
- D.
Screen speed
- 3.Radiographic contrast is determined primarily by
- A.
Exposure time
- B.
Film speed
- C.
KVp
- D.
MAs
- 4.If a radiograph includes many shades of gray, which of the following is also true regarding the image?
- A.
High contrast, low kVp
- B.
High contrast, high kVp
- C.
Low contrast, high kVp
- D.
Low contrast, low kVp
- 5.When viewing a radiograph of a laterally positioned animal:
- A.
The head should be at the top of the viewbox
- B.
The head should face the viewer's left with the spine at the top
- C.
The head should face the viewer's right with the spine at the top
- D.
The head should face the viewer's left with the spine at the bottom
- 6.An overexposed film appears _______; to correct this, ___________.
- A.
Too dark; increase mAs or kVp
- B.
Too light; increase mAs or kVp
- C.
Too light; decrease mAs or kVp
- D.
Too dark; decrease mAs of kVp
- 7.What action should be taken if it is difficult to see anatomic silhouettes on an abdominal film and the film is too light? Why?
- A.
Increase kVp by 10% to 15%; shorten wavelength increase penetrating power
- B.
Increase mAs by 10% to 15%; increase the number of x-rays reaching the film
- C.
Increase mAs by 30% to 50%; increase density
- D.
Decrease mAs by 30% to 50%; lengthen wavelength and decrease penetrating power
- 8.You have determined that penetration is adequate for a particular abdominal film. All abdominal structures are well outline. However, the film has an overall appearance of being too light. What should you do next?
- A.
Increase mAs by 30% to to 50%
- B.
Increase kVp by 10% to 15%
- C.
Increase mAs by 10% to 50%
- D.
Increase kVp by 30% to 50%
- 9.A thoracic film is too dark. The bone tissue is relatively white. What is the next step?
- A.
Increase mAs by 50%
- B.
Incerase kVp by 15%
- C.
Decrease mAs by 15%
- D.
Decrease mAs by 50%
- 10.How does kVp affect scatter radiation?
- A.
As kVp increases, scatter radiation decreases
- B.
KVp has no effect on scatter radiation
- C.
As kVp increases, scatter radiation can increase
- D.
As kVp decreases, scatter radiation can increase
- 11.Any body part exceeding this measurement requires the use of a grid to reduce fog-producing scatter radiation
- A.
20 cm
- B.
10 cm
- C.
2.5 cm
- D.
30 cm
- 12.If a radiograph is too light after taking a view of the lateral abdomen, what change may be recommnded?
- A.
Decrease kVp 10% to 15%
- B.
Increase mAs 30% to 50%
- C.
Increae kVp 30% to 50%
- D.
Decrease mAs 30% to 50%
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