Ohio GXMO Study Guide Review 2025 UPDATE| COMPREHENSIVE
Ohio GXMO Study Guide Review
QUESTIONS AND VERIFIED ANSWERS (COMPLETE SOLUTIONS)
Study online at https://quizlet.com/_hfka76
1. Who discovered x-rays? Wilhelm Conrad Roentgen
2. When were x-rays discovered? November 8, 1895 in Germany
3. What are the 3 Cardinal Principals Maximize distance, maximize shielding, minimize time
of radiation protection?
4. What is Erythema? Reddening of the skin
5. What is Anemia? Decrease of oxygen in blood, low blood count
6. What is Leukopenia? Low WBC count
7. What is epilation? Loss of hair
8. What does ALARA stand for? As Low As Reasonably Achievable
9. What is collimation? Limits the size/area of the x-ray beam
10. What is a proton? Positively charged, in nucleus of atom
11. What is a neutron? No electrical charge, in nucleus of atom
12. What is a electron? Negatively charged, in orbital shell around nucleus of an
atom
13. What is an ion? A charged particle
14. What is ionization? Process of an electron leaving its orbit around a neutral
atom
15. What is an ion pair? An electron and a positive charged atom
16. What does isotropic mean? Equal in all directions
17. What is energy? The ability to do work
, Ohio GXMO Study Guide Review
Study online at https://quizlet.com/_hfka76
18. What is mass? The quantity of matter
19. What is matter? Anything that occupies space and has mass
20. What travels at 186,000 All electromagnetic radiation
miles/second?
21. Does electromagnetic radiation No
have mass?
22. What has higher energy than vis- X-rays
ible light?
23. What happens when x-rays are Causes ionization of atoms and molecules
absorbed by body tissue?
24. Ionization can result in what type Biological Damage
of damage?
25. What is radioplaque? DOES NOT go through
26. What is radiolucent? Sees through
27. A special mechanism that stops Detent
tube movement at a specific loca-
tion is?
28. What device receives the energy Image Receptor
of the x-ray beam and forms the
image of the body part?
29. What type of cassette containing Film based
film receives x-ray beam?
, Ohio GXMO Study Guide Review
Study online at https://quizlet.com/_hfka76
30. What is a latent image? A hidden image
31. A cassette containing film re- Dark room
ceives the x-ray beam. The film
now contains a latent image and
will become visible after being
processed in a?
32. What type of cassette contain- Computed Radiography
ing a phosphor plate receives the
x-ray beam?
33. In CR, the phosphor plate will be Laser
scanned by a?
34. An electronic plate receives the Direct/Digital
x-ray beam and produces and
electronic signal that is sent di-
rectly to a computer for process-
ing and digital image formation?
35. What prevents scatter radiation Grid
from reaching the IR?
36. What includes a tray to hold the Bucky
IR?
37. What does the collimator do? Limits the size of the radiation field
38. What does transverse mean? Movement of the x-ray tube across the patient from left
to right
39. What does longitudinal mean? Movement of the x-ray tube from the foot end toward the
head end of the patient
Ohio GXMO Study Guide Review
QUESTIONS AND VERIFIED ANSWERS (COMPLETE SOLUTIONS)
Study online at https://quizlet.com/_hfka76
1. Who discovered x-rays? Wilhelm Conrad Roentgen
2. When were x-rays discovered? November 8, 1895 in Germany
3. What are the 3 Cardinal Principals Maximize distance, maximize shielding, minimize time
of radiation protection?
4. What is Erythema? Reddening of the skin
5. What is Anemia? Decrease of oxygen in blood, low blood count
6. What is Leukopenia? Low WBC count
7. What is epilation? Loss of hair
8. What does ALARA stand for? As Low As Reasonably Achievable
9. What is collimation? Limits the size/area of the x-ray beam
10. What is a proton? Positively charged, in nucleus of atom
11. What is a neutron? No electrical charge, in nucleus of atom
12. What is a electron? Negatively charged, in orbital shell around nucleus of an
atom
13. What is an ion? A charged particle
14. What is ionization? Process of an electron leaving its orbit around a neutral
atom
15. What is an ion pair? An electron and a positive charged atom
16. What does isotropic mean? Equal in all directions
17. What is energy? The ability to do work
, Ohio GXMO Study Guide Review
Study online at https://quizlet.com/_hfka76
18. What is mass? The quantity of matter
19. What is matter? Anything that occupies space and has mass
20. What travels at 186,000 All electromagnetic radiation
miles/second?
21. Does electromagnetic radiation No
have mass?
22. What has higher energy than vis- X-rays
ible light?
23. What happens when x-rays are Causes ionization of atoms and molecules
absorbed by body tissue?
24. Ionization can result in what type Biological Damage
of damage?
25. What is radioplaque? DOES NOT go through
26. What is radiolucent? Sees through
27. A special mechanism that stops Detent
tube movement at a specific loca-
tion is?
28. What device receives the energy Image Receptor
of the x-ray beam and forms the
image of the body part?
29. What type of cassette containing Film based
film receives x-ray beam?
, Ohio GXMO Study Guide Review
Study online at https://quizlet.com/_hfka76
30. What is a latent image? A hidden image
31. A cassette containing film re- Dark room
ceives the x-ray beam. The film
now contains a latent image and
will become visible after being
processed in a?
32. What type of cassette contain- Computed Radiography
ing a phosphor plate receives the
x-ray beam?
33. In CR, the phosphor plate will be Laser
scanned by a?
34. An electronic plate receives the Direct/Digital
x-ray beam and produces and
electronic signal that is sent di-
rectly to a computer for process-
ing and digital image formation?
35. What prevents scatter radiation Grid
from reaching the IR?
36. What includes a tray to hold the Bucky
IR?
37. What does the collimator do? Limits the size of the radiation field
38. What does transverse mean? Movement of the x-ray tube across the patient from left
to right
39. What does longitudinal mean? Movement of the x-ray tube from the foot end toward the
head end of the patient
