Radiologic Technology ARRT Review Final Exam Prep Test
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Which photon-tissue interaction makes radiography possible
because of its creation of image contrast?
a. Compton
b. Coherent
c. Photoelectric
d. Pair production - ANSWERS--Photoelectric
Which photon-tissue interaction produces radiation that may expose
others in the room during fluoroscopy?
a. Compton
b. Coherent
c. Photoelectric
d. Pair production - ANSWERS--Compton
The SI unit of absorbed dose:
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a. Coulombs/kilogram
b. Gray
c. Curie
d. Rad - ANSWERS--Gray
The SI unit of radioactivity:
a. Becqueral
b. Rem
c. Quality factor
d. Curie - ANSWERS--Becqueral
Measurement of positive and negative particles created when
radiation ionizes atoms in the air:
a. Becquerel
b. Sievert
c. Roentgen
d. Curie - ANSWERS--Roentgen
Linear energy transfer:
a. is the same for all types of radiation
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b. is the same for wave and particulate radiations used in diagnosis
and treatment
c. occurs only during x-ray procedures
d. varies for different types of radiation - ANSWERS--Varies for
different types of radiation
The unit of the curie would be used in what imaging modality?
a. Radiography
b. CT
c. MRI
d. Nuclear Medicine - ANSWERS--Nuclear Medicine
The smallest particle of an element that retains the characteristics of
the element:
a. compound
b. atom
c. molecule
d. neutron - ANSWERS--Atom
Atomic mass refers to:
a. the number of protons plus the number of neutrons
b. the number of electrons plus the number of protons
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c. the number of electrons plus the number of neutrons
d. the number of protons - ANSWERS--Number of protons plus
number of neutrons
X-rays travel as a bundles of energy called:
a. protons
b. phasers
c. particles
d. photons - ANSWERS--Photons
The height of a sine wave:
a. wavelength
b. altitude
c. amplitude
d. frequency - ANSWERS--Amplitude
The number of x-ray waves passing a given point per unit of time:
a. wavelength
b. altitude
c. amplitude
d. frequency - ANSWERS--Frequency