Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
30 Cards in this Set
- Front
- Back
|
1. A decrease in exposure time may increase which of the following?
a. density b. contrast c. distortion d. recorded detail |
d. recorded detail
|
|
|
2. What is the definition of recorded detail?
a. the contrast of the image b. the sharpness of the image c. the lack of distortion in the image d. all of the above are good definitions |
b. the sharpness of the image
|
|
|
3. Loss of recorded detail due to the use of intensifying screens is referred to as what?
a. intrinsic unsharpness b. distortion c. gamma loss d. detail loss |
a. intrinsic unsharpness
|
|
|
4. Which of the following screen speeds will produce the best recorded detail?
a. 50 b. 100 c. 200 d. 400 |
a. 50
|
|
|
5. Which of the following factors is unrelated to recorded detail?
a. geometric factors b. motion factors c. intrinsic factors d. technical factors of kVp and mA |
d. technical factors of kVp and mA
|
|
|
6. Recorded detail can be improved by which of the following?
a. higher contrast b. greater density c. smaller focal spot size d. air gap technique |
c. smaller focal spot size
|
|
|
7. Recorded detail can be improved by which of the following?
a. maximum OID b. maximum SID c. Minimum SID d. minimum SOD |
b. maximum SID
|
|
|
8. Which of the following is not considered one of the geometric factors that control recorded detail?
a. OID b. SID c. focal spot size d. size of the object |
d. size of the object
|
|
|
9. Which of the following is the single most important reason for loss of recorded detail in a radiograph?
a. focal spot size b. OID c. patient motion d. screen speed |
c. patient motion
|
|
|
10. Which of the following factors has the least effect on recorded detail?
a. patient motion b. patient size c. focal spot size d. screen speed |
b. patient size
|
|
|
11. When radiographing a small part, recorded detail can be improved by which of the following?
a. using detail screens b. increasing the OID c. using a large focal spot d. using the high speed rotor |
a. using detail screens
|
|
|
12. Which of the following refers to the amount of recorded detail on a radiograph?
a. latitude b. gamma c. resolution d. exposure |
c. resolution
|
|
|
13. Which of the primary factors will always have an effect on recorded detail?
a. seconds b. SID c. mA d. kVp |
b SID
|
|
|
14. Recorded detail can be improved by reducing which of the following?
a. SID b. SOD c. focal spot size d. patient size |
c. focal spot size
|
|
|
15. Which of the following factors is the best for reducing the risks of motion?
a. use high screen speeds b. use the shortest possible exposure time. c. use low grid ration d. use highest practical kVp |
b. use shortest possible exposure time
|
|
|
16. Which of the following radiograph qualities determines the sharpness of the finished radiograph?
a. recorded detail and contrast b. recorded detail and distortion c. density and contrast d. density and distortion |
b. recorded detail and distortion
|
|
|
17. In order to obtain the most recorded detail, the OID should be what?
a. the same for every film b. as long as possible c. as short as possible d. equal to the SID |
c. as short as possible
|
|
|
18. If it is impossible to get that part close to the film, what can be done to compensate?
a. increase exposure time b. increase SID c. decrease kVp d. decrease film speed |
b. increase SID
|
|
|
19. How will increasing the focal spot size affect recorded detail?
a. it will decrease blur b. it will decrease unsharpness c. it will increase unsharpness d. in will increase recorded detail |
c. in will increase unsharpness
|
|
|
20. How will increasing the OID affect the recorded detail in a radiograph?
a. increase recorded detail b. decrease recorded detail c. eliminate recorded detail d. will have no effect on recorded detail |
b. decrease recorded detail
|
|
|
21. Which of the following can be used to reduce unsharpness?
a. decrease screen speed b. decrease focal spot size c. decrease OID d. all of the above |
d. all of the above
|
|
|
22. Misrepresentation of the true size and shape of an object is the definition of which of the following?
a. recorded detail b. elongation c. distortion d. magnification |
c. distortion
|
|
|
23. What are the two types of distortion that can reduce the quality of an radiograph?
a. size and shape b. size and contrast c. density and contrast d. long and short |
a. size and shape
|
|
|
24. Which of the following is the most important factor in controlling size distortion?
a. focal spot size b. SID c. OID d. exposure time |
c. OID
|
|
|
25. Which of the following will keep size distortion to a minumum?
a. increase screen speed b. increase grid ratio c. increase SID d. increase focal spot size |
c. increase SID
|
|
|
26. Which of the following occurs when the OID is increased?
a. image size is reduced b. image is magnified c. image is elongated d. image is foreshortened |
b. image is magnified
|
|
|
27. Tube angulation will produce which of the following types of distortion?
a. elongation b. foreshortening c. magnification d. minification |
a. elongation
|
|
|
28. What type of distortion results in an increase in OID?
a. minification b. size c. elongation d. shape |
b. size
|
|
|
29. To avoid shape distortion, which of the following must be paid close attention to?
a. SID b. Part-angulation c. part to table top distance d. SOD |
b. part angulation
|
|
|
30. How does magnification affect radiographic quality?
a. decreases recorded detail b. decreases density c. lowers contrast |
a. decreases recorded detail
|
