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Bob Hogue - Pre Lic. Test Questions Practice questions for this set Learn 1 / 7 Study with Learn B Choose matching term Which property is defined as residential real estate under Chapter 475, Florida statutes? A) Fifty-unit apartment comple$7.99
Bob Hogue - Pre Lic. Test Questions Practice questions for this set Learn 1 / 7 Study with Learn B Choose matching term Which property is defined as residential real estate under Chapter 475, Florida statutes? A) Fifty-unit apartment comple
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GED - General Educational Development
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GED - General Educational Development
Bob Hogue - Pre Lic. Test Questions
Practice questions for this set
Learn 1 / 7 Study with Learn
B
Choose matching term
Which property is defined as residential real estate under Chapter 475, Florida statutes?
A) Fifty-unit apartment complex
1 B) Neighborhood grocer...
The ability of a system to differentiate, on the image, objects with similar densities is known as:
A. High contrast resolution
1 B. Low contrast resolution
C. Spatial resolution
D. Temporal resolution
An object is slightly less dense than water. What is the expected hounsfield measurement?
A. -940
2 B. -10
C. 50
D. 850
What is the single best method of reducing the risk of idiosyncratic contrast medium reaction?
A. premedicate the patient with steroids
3 B. use LOCM
C. reduce the dose
D. perform a test injection
A graphical representation of the CT system's capability of passing information through it to the
observer is called:
A. interpolation
4
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B. modulation transfer function (MTF)
C. receiver operator characteristics
D. contrast detail response
Don't know?
Terms in this set (190)
Which is NOT a synonym for the D. Spiral
preliminary/localizer image taken at the start
of a CT examination?
A. Topogram
B. Scout
C. Scanogram
D. Spiral
The ability of a system to differentiate, on the B. Low contrast resolution
image, objects with similar densities is known
as:
A. High contrast resolution
B. Low contrast resolution
C. Spatial resolution
D. Temporal resolution
Each two dimensional square of data that A. Pixel
make up the CT image is called a:
A. Pixel
B. Voxel
C. Matrix
D. Fragment
How many pixels are contained in a 1,024 D. 1,048,576
matrix image? A. 1,024
B. 2,048
C. 262,144
D. 1,048,576
Beam attenuation can be defined as: D. The phenomenon by which an xray beam passing through a structure is decreased in
A. The phenomenon by which artifacts result intensity or amount because of absorption and interaction with matter.
when lower energy photons are
preferentially absorbed, leaving only higher-
intensity photons to strike the detector array.
B. Xray energy that is produced from
bombarding a substance with fast moving
electrons.
C. The ability of the detector to capture
transmitted photons and change them to
electronic signals.
D. The phenomenon by which an xray beam
passing through a structure is decreased in
intensity or amount because of absorption
and interaction with matter.
2/19
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Which of the following is a low attenuation C. Trachea
structure:
A. Iodine filled aorta
B. Rib
C. Trachea
D. Calcified arteries
An object is slightly less dense than water. B. -10
What is the expected hounsfield
measurement?
A. -940
B. -10
C. 50
D. 850
Why does the administration of iodinated A. Iodinated contrast material increases the ability of the enhanced structure to
contrast media result in an enhanced image? attenuate the xray beam.
A. Iodinated contrast material increases the
ability of the enhanced structure to
attenuate the xray beam.
B. Iodinated contrast material decreases the
average photon energy of the xray beam;
therefore more photons are absorbed by the
patient.
C. The administration of contrast material
results in a smaller pixel, thereby increasing
spatial resolution, which results in an
enhanced image.
D.
The xray beam sources for CT produce xray D. The beam comprises photons with varying energies.
energy that is polychromatic. This means:
A. When viewed by the naked eye, the beam
exhibits many different colors.
B. It produce, as a byproduct, a substance
known as polychlorinated biphenyl.
C. Photons contained in the beam are all of
the same wavelength.
D. The beam comprises photons with varying
energies.
An object that appears on the image but is A. Artifact
not present in the object scanned is called
a/n:
A. Artifact
B. Anomaly
C. Shadow
D. Ghost
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