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Ohio GXMO Study Guide Review questions with complete solutions
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Ohio GXMO Study Guide Reviewquestions with complete solutions
Who discovered x-rays? - correct answer -Wilhelm Conrad Roentgen
When were x-rays discovered? - correct answer -November 8, 1895 in Germany
What are the 3 Cardinal Principals of radiation protection? - correct answer -Maximize distance,
maximize shielding, minimize time
What is Erythema? - correct answer -Reddening of the skin
What is Anemia? - correct answer -Decrease of oxygen in blood, low blood count
What is Leukopenia? - correct answer -Low WBC count
What is epilation? - correct answer -Loss of hair
What does ALARA stand for? - correct answer -As Low As Reasonably Achievable
What is collimation? - correct answer -Limits the size/area of the x-ray beam
What is a proton? - correct answer -Positively charged, in nucleus of atom
What is a neutron? - correct answer -No electrical charge, in nucleus of atom
What is a electron? - correct answer -Negatively charged, in orbital shell around nucleus of an atom
,What is an ion? - correct answer -A charged particle
What is ionization? - correct answer -Process of an electron leaving its orbit around a neutral atom
What is an ion pair? - correct answer -An electron and a positive charged atom
What does isotropic mean? - correct answer -Equal in all directions
What is energy? - correct answer -The ability to do work
What is mass? - correct answer -The quantity of matter
What is matter? - correct answer -Anything that occupies space and has mass
What travels at 186,000 miles/second? - correct answer -All electromagnetic radiation
Does electromagnetic radiation have mass? - correct answer -No
What has higher energy than visible light? - correct answer -X-rays
What happens when x-rays are absorbed by body tissue? - correct answer -Causes ionization of atoms
and molecules
Ionization can result in what type of damage? - correct answer -Biological Damage
What is radioplaque? - correct answer -DOES NOT go through
What is radiolucent? - correct answer -Sees through
, A special mechanism that stops tube movement at a specific location is? - correct answer -Detent
What device receives the energy of the x-ray beam and forms the image of the body part? - correct
answer -Image Receptor
What type of cassette containing film receives x-ray beam? - correct answer -Film based
What is a latent image? - correct 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? - correct answer -Dark room
What type of cassette containing a phosphor plate receives the x-ray beam? - correct answer -Computed
Radiography
In CR, the phosphor plate will be scanned by a? - correct answer -Laser
An electronic plate receives the x-ray beam and produces and electronic signal that is sent directly to a
computer for processing and digital image formation? - correct answer -Direct/Digital
What prevents scatter radiation from reaching the IR? - correct answer -Grid
What includes a tray to hold the IR? - correct answer -Bucky
What does the collimator do? - correct answer -Limits the size of the radiation field
What does transverse mean? - correct answer -Movement of the x-ray tube across the patient from left
to right
What does longitudinal mean? - correct answer -Movement of the x-ray tube from the foot end toward
the head end of the patient
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