CT Registry Review (MIC) TEST BANK QUESTIONS AND ACCURATE
DETAILED ANSWERS \VERIFIED ANSWERS \ ASSURED PASS
ALREADY GRADED A+||LATEST UPDATE
rays are used in CT C
because:
a. they are easily
produced by the high
frequency generator
b. they are less harmful
than the heating effects of
microwave radiation
c. they penetrate the body
according to specific
attenuation characteristics
of each tissue
d. the FDA imposes no
limit on the dose to the
patient
Most of the commands operators console
from the technologists are
received by the:
Xrays are produced The electron loses kinetic energy which is converted
whenever fast moving into the emission of an x-ray photon
electrons collide with any
form of matter because:
The mA determines the: quantity of x-ray photons
Which of the following is a array processor
component NOT normally
located in the gantry of a
modern CT system?
,Tube interscan delay time the time between the end of one scan and the start of
refers to: the next scan during which the tube will cool
Increased ____ will 1
increase the likelihood
that a given x-ray will
penetrate a material
1. kV
2. mA
3. exposure time
Which of the following are 1,2
NOT commonly used on
today's commercially
available CT scanners?
1. xenon detectors
2. fourth-generation
technology
3. continous rotation
technology
,Which of the following 2
statements is FALSE
regarding occurrences
after an x-ray photon
penetrates the detector
aperture?
1. the photon can pass
through the detector
unmeasured
2. the photon is converted
completely into a electron
3. the measured signal in
enhanced by an amplifier
Scatter radiation is caused deflections from the original trajectory of an x-ray
by: photon through the patient
What control does the the energy level and the quantity of x-rays can be
operator have over the x- selected
rays in a CT exam?
Which of the following is DICOM
the standard that's used to
achieve compatibility for
image transfer between
various imaging
modalities, viewing
stations, and printers in a
hospital?
The enormous heat that Collision of the electron beam with the tungsten
builds up in the CT tube is target on the tube anode
caused by what?
___________ made helical Continuous rotation scanners
imaging possible
, The patient table: A
a. may move continuously
during the scan
b. can never be positioned
automatically by software
due to safety precautions
c. remains stationary
through the exam once it
is initially positioned
d. only moves after each
slice is completed
The main purpose of the capture x-ray photons and convert them to a
detector is to: measurable signal
The cathode filament: helps determine the size of the focal spot
Which of the statements in 1,2
TRUE:
1. kV is the voltage
potential between the
tube cathode and anode
while mA ultimately
controls the filament temp
of the cathode filament
2. kV controls the energy
level of the x-ray photons
and mA controls the
number of x-ray photons
emitted from the tube
3. although kV and the mA
affect the operation of the
CT x-ray tube, the two
parameters have no
bearing on the image
quality
DETAILED ANSWERS \VERIFIED ANSWERS \ ASSURED PASS
ALREADY GRADED A+||LATEST UPDATE
rays are used in CT C
because:
a. they are easily
produced by the high
frequency generator
b. they are less harmful
than the heating effects of
microwave radiation
c. they penetrate the body
according to specific
attenuation characteristics
of each tissue
d. the FDA imposes no
limit on the dose to the
patient
Most of the commands operators console
from the technologists are
received by the:
Xrays are produced The electron loses kinetic energy which is converted
whenever fast moving into the emission of an x-ray photon
electrons collide with any
form of matter because:
The mA determines the: quantity of x-ray photons
Which of the following is a array processor
component NOT normally
located in the gantry of a
modern CT system?
,Tube interscan delay time the time between the end of one scan and the start of
refers to: the next scan during which the tube will cool
Increased ____ will 1
increase the likelihood
that a given x-ray will
penetrate a material
1. kV
2. mA
3. exposure time
Which of the following are 1,2
NOT commonly used on
today's commercially
available CT scanners?
1. xenon detectors
2. fourth-generation
technology
3. continous rotation
technology
,Which of the following 2
statements is FALSE
regarding occurrences
after an x-ray photon
penetrates the detector
aperture?
1. the photon can pass
through the detector
unmeasured
2. the photon is converted
completely into a electron
3. the measured signal in
enhanced by an amplifier
Scatter radiation is caused deflections from the original trajectory of an x-ray
by: photon through the patient
What control does the the energy level and the quantity of x-rays can be
operator have over the x- selected
rays in a CT exam?
Which of the following is DICOM
the standard that's used to
achieve compatibility for
image transfer between
various imaging
modalities, viewing
stations, and printers in a
hospital?
The enormous heat that Collision of the electron beam with the tungsten
builds up in the CT tube is target on the tube anode
caused by what?
___________ made helical Continuous rotation scanners
imaging possible
, The patient table: A
a. may move continuously
during the scan
b. can never be positioned
automatically by software
due to safety precautions
c. remains stationary
through the exam once it
is initially positioned
d. only moves after each
slice is completed
The main purpose of the capture x-ray photons and convert them to a
detector is to: measurable signal
The cathode filament: helps determine the size of the focal spot
Which of the statements in 1,2
TRUE:
1. kV is the voltage
potential between the
tube cathode and anode
while mA ultimately
controls the filament temp
of the cathode filament
2. kV controls the energy
level of the x-ray photons
and mA controls the
number of x-ray photons
emitted from the tube
3. although kV and the mA
affect the operation of the
CT x-ray tube, the two
parameters have no
bearing on the image
quality
