Page 1 of 55
OHIO GXMO EXAM AND STUDY GUIDE NEWEST 2025
TEST BANK| COMPLETE 450 REAL EXAM QUESTIONS
AND CORRECT VERIFIED ANSWERS/ GRADED A+|
GXMO OHIO EXAM REVIEW 2025 (BRAND NEW!!)
Who discovered x-rays? .....ANSWER..... Wilhelm Conrad
Roentgen
When were x-rays discovered? .....ANSWER..... November 8,
1895 in Germany
What are the 3 Cardinal Principals of radiation protection?
.....ANSWER..... Maximize distance, maximize shielding, minimize
time
What is Erythema? .....ANSWER..... Reddening of the skin
What is Anemia? .....ANSWER..... Decrease of oxygen in blood,
low blood count
What is Leukopenia? .....ANSWER..... Low WBC count
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What is epilation? .....ANSWER..... Loss of hair
What does ALARA stand for? .....ANSWER..... As Low As
Reasonably Achievable
What is collimation? .....ANSWER..... Limits the size/area of the x-
ray beam
What is a proton? .....ANSWER..... Positively charged, in nucleus
of atom
What is a neutron? .....ANSWER..... No electrical charge, in
nucleus of atom
What is a electron? .....ANSWER..... Negatively charged, in
orbital shell around nucleus of an atom
What is an ion? .....ANSWER..... A charged particle
What is ionization? .....ANSWER..... Process of an electron leaving
its orbit around a neutral atom
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What is an ion pair? .....ANSWER..... An electron and a positive
charged atom
What does isotropic mean? .....ANSWER..... Equal in all directions
What is energy? .....ANSWER..... The ability to do work
What is mass? .....ANSWER..... The quantity of matter
What is matter? .....ANSWER..... Anything that occupies space
and has mass
What travels at 186,000 miles/second? .....ANSWER..... All
electromagnetic radiation
Does electromagnetic radiation have mass? .....ANSWER..... No
What has higher energy than visible light? .....ANSWER..... X-rays
What happens when x-rays are absorbed by body tissue?
.....ANSWER..... Causes ionization of atoms and molecules
Ionization can result in what type of damage? .....ANSWER.....
Biological Damage
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What is radioplaque? .....ANSWER..... DOES NOT go through
What is radiolucent? .....ANSWER..... Sees through
A special mechanism that stops tube movement at a specific
location is? .....ANSWER..... Detent
What device receives the energy of the x-ray beam and forms
the image of the body part? .....ANSWER..... Image Receptor
What type of cassette containing film receives x-ray beam?
.....ANSWER..... Film based
What is a latent image? .....ANSWER..... A hidden image
A cassette containing film receives the x-ray beam. The film now
contains a latent image and will become visible after being
processed in a? .....ANSWER..... Dark room
What type of cassette containing a phosphor plate receives the
x-ray beam? .....ANSWER..... Computed Radiography
OHIO GXMO EXAM AND STUDY GUIDE NEWEST 2025
TEST BANK| COMPLETE 450 REAL EXAM QUESTIONS
AND CORRECT VERIFIED ANSWERS/ GRADED A+|
GXMO OHIO EXAM REVIEW 2025 (BRAND NEW!!)
Who discovered x-rays? .....ANSWER..... Wilhelm Conrad
Roentgen
When were x-rays discovered? .....ANSWER..... November 8,
1895 in Germany
What are the 3 Cardinal Principals of radiation protection?
.....ANSWER..... Maximize distance, maximize shielding, minimize
time
What is Erythema? .....ANSWER..... Reddening of the skin
What is Anemia? .....ANSWER..... Decrease of oxygen in blood,
low blood count
What is Leukopenia? .....ANSWER..... Low WBC count
,Page 2 of 55
What is epilation? .....ANSWER..... Loss of hair
What does ALARA stand for? .....ANSWER..... As Low As
Reasonably Achievable
What is collimation? .....ANSWER..... Limits the size/area of the x-
ray beam
What is a proton? .....ANSWER..... Positively charged, in nucleus
of atom
What is a neutron? .....ANSWER..... No electrical charge, in
nucleus of atom
What is a electron? .....ANSWER..... Negatively charged, in
orbital shell around nucleus of an atom
What is an ion? .....ANSWER..... A charged particle
What is ionization? .....ANSWER..... Process of an electron leaving
its orbit around a neutral atom
,Page 3 of 55
What is an ion pair? .....ANSWER..... An electron and a positive
charged atom
What does isotropic mean? .....ANSWER..... Equal in all directions
What is energy? .....ANSWER..... The ability to do work
What is mass? .....ANSWER..... The quantity of matter
What is matter? .....ANSWER..... Anything that occupies space
and has mass
What travels at 186,000 miles/second? .....ANSWER..... All
electromagnetic radiation
Does electromagnetic radiation have mass? .....ANSWER..... No
What has higher energy than visible light? .....ANSWER..... X-rays
What happens when x-rays are absorbed by body tissue?
.....ANSWER..... Causes ionization of atoms and molecules
Ionization can result in what type of damage? .....ANSWER.....
Biological Damage
, Page 4 of 55
What is radioplaque? .....ANSWER..... DOES NOT go through
What is radiolucent? .....ANSWER..... Sees through
A special mechanism that stops tube movement at a specific
location is? .....ANSWER..... Detent
What device receives the energy of the x-ray beam and forms
the image of the body part? .....ANSWER..... Image Receptor
What type of cassette containing film receives x-ray beam?
.....ANSWER..... Film based
What is a latent image? .....ANSWER..... A hidden image
A cassette containing film receives the x-ray beam. The film now
contains a latent image and will become visible after being
processed in a? .....ANSWER..... Dark room
What type of cassette containing a phosphor plate receives the
x-ray beam? .....ANSWER..... Computed Radiography
