ARRT Registry Exam review NEWEST WITH
ACTUAL QUESTIONS AND CORRECT VERIFIED
ANSWERS (100% GUARANTEED PASS!!!)
(Gastrointestinal Syndrome will only occur at dose
threshold levels of 10 Gy. It is characterized by the
destruction of the intestinal tract, leading to diarrhea
and dehydration. Victims of Gastrointestinal
Syndrome are not expected to survive)
Which of the following methods of introducing
contrast media into the body is considered an
enteral method?
a. intravenous
b. intrathecal
c. oral
d. intra-articular - __100% correct answer as c.
oral
(The term enteral means passing through the
intestines, making "oral" the only correct choice from
those provided)
If 2 Gy of x-radiation was sufficient to kill a healthy
oxygenated cell, what dose of x-radiation will be
necessarily to kill a hypoxic cell?
a. 3 Gy
,b. 4 Gy
c. 5 Gy
d. 6 Gy - __100% correct answer as d. 6 Gy
(X-rays have an Oxygen Enhancement Ratio (OER)
of 3. This means that if 2 Gy was sufficient to cause
cell death to a healthy oxygenated cell, 6 Gy would
be required to kill a cell that was considered to be
hypoxic. 2 Gy x 3 = 6 Gy)
A process used to identify the useful pixels values in
the digital image is called:
a. Histogram analysis
b. Rescaling
c. Lookup Table adjustments
d. Digitization - __100% correct answer as a.
Histogram analysis
(After the x-ray exposure is made, there are 3
adjustments made to the histogram before the
image is displayed. 1) Histogram analysis identifies
the useful pixels ("values of interest"), which are
used for processing. 2) Rescaling adjusts the pixel
values to fit the normal histogram of the body part
and adjust for small exposure errors. 3) A Lookup
Table is used to give the image just the right amount
of brightness and contrast)
,Somatic effects of radiation can best be defined as:
a. Harm caused to future generations of the exposed
individual.
b. Harm caused to the reproductive organs of the
exposed individual.
c. Harm caused to individual that was exposed. -
__100% correct answer as c. Harm caused to
individual that was exposed.
(The somatic effect of radiation is caused by harm to
the body of the exposed individual. Somatic means
"body", therefore, somatic effects refer to effects in
the body of the exposed person)
What is the correct term used to describe an
intravenous injection of a concentrated volume of
contrast media?
a. bolus
b. infusion
c. extravasation
d. luminal - __100% correct answer as a. bolus
, Which of the following methods utilizes a detector
that captures x-ray energy and converts it into an
electronic signal?
a. indirect capture
b. CCD
c. cassette based radiography
d. direct capture - __100% correct answer as d.
direct capture
The energy of a characteristic x-ray photon created
when an L shell electron fills a K shell vacancy in a
tungsten atom will have which of the following
energies?
a. 69.5 keV
b. 57.5 keV
c. 91.5 keV
d. 12 keV - __100% correct answer as b. 57.5
keV
The energy of characteristic photons is determined
by the difference in binding energies between the
two electron shells involved in the process, which in
this question are K and L shells. 69.5 (K shell) minus
12 (L shell) equals 57.5.
ACTUAL QUESTIONS AND CORRECT VERIFIED
ANSWERS (100% GUARANTEED PASS!!!)
(Gastrointestinal Syndrome will only occur at dose
threshold levels of 10 Gy. It is characterized by the
destruction of the intestinal tract, leading to diarrhea
and dehydration. Victims of Gastrointestinal
Syndrome are not expected to survive)
Which of the following methods of introducing
contrast media into the body is considered an
enteral method?
a. intravenous
b. intrathecal
c. oral
d. intra-articular - __100% correct answer as c.
oral
(The term enteral means passing through the
intestines, making "oral" the only correct choice from
those provided)
If 2 Gy of x-radiation was sufficient to kill a healthy
oxygenated cell, what dose of x-radiation will be
necessarily to kill a hypoxic cell?
a. 3 Gy
,b. 4 Gy
c. 5 Gy
d. 6 Gy - __100% correct answer as d. 6 Gy
(X-rays have an Oxygen Enhancement Ratio (OER)
of 3. This means that if 2 Gy was sufficient to cause
cell death to a healthy oxygenated cell, 6 Gy would
be required to kill a cell that was considered to be
hypoxic. 2 Gy x 3 = 6 Gy)
A process used to identify the useful pixels values in
the digital image is called:
a. Histogram analysis
b. Rescaling
c. Lookup Table adjustments
d. Digitization - __100% correct answer as a.
Histogram analysis
(After the x-ray exposure is made, there are 3
adjustments made to the histogram before the
image is displayed. 1) Histogram analysis identifies
the useful pixels ("values of interest"), which are
used for processing. 2) Rescaling adjusts the pixel
values to fit the normal histogram of the body part
and adjust for small exposure errors. 3) A Lookup
Table is used to give the image just the right amount
of brightness and contrast)
,Somatic effects of radiation can best be defined as:
a. Harm caused to future generations of the exposed
individual.
b. Harm caused to the reproductive organs of the
exposed individual.
c. Harm caused to individual that was exposed. -
__100% correct answer as c. Harm caused to
individual that was exposed.
(The somatic effect of radiation is caused by harm to
the body of the exposed individual. Somatic means
"body", therefore, somatic effects refer to effects in
the body of the exposed person)
What is the correct term used to describe an
intravenous injection of a concentrated volume of
contrast media?
a. bolus
b. infusion
c. extravasation
d. luminal - __100% correct answer as a. bolus
, Which of the following methods utilizes a detector
that captures x-ray energy and converts it into an
electronic signal?
a. indirect capture
b. CCD
c. cassette based radiography
d. direct capture - __100% correct answer as d.
direct capture
The energy of a characteristic x-ray photon created
when an L shell electron fills a K shell vacancy in a
tungsten atom will have which of the following
energies?
a. 69.5 keV
b. 57.5 keV
c. 91.5 keV
d. 12 keV - __100% correct answer as b. 57.5
keV
The energy of characteristic photons is determined
by the difference in binding energies between the
two electron shells involved in the process, which in
this question are K and L shells. 69.5 (K shell) minus
12 (L shell) equals 57.5.
