COMPUTED TOMOGRAPHY REGISTRY PREP -
FINAL W/CHOL KIM EXAM UPDATE WITH
MULTIPLE CHOICE QUESTIONS, CORRECTLY
ANSWERED & GRADED A+ |VERIFIED AND
BRAND NEW!!!
A CT angiogram of the neck is performed primarily for the
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evaluation of the:
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a. carotid vein
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b. jugular vein
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c. carotid arteries
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d. coronary arteries
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A CT system measures the average linear attenuation coefficient
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of a voxel of tissue to be 0.008. The linear attenuation coefficient
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of water for this scanner equals 0.181. The CT number assigned
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to the pixel representing this voxel of tissue equals:
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a. -956 HU
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b. -173 HU
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c. 44 HU
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d. 1044 HU
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,A CT system measures the average linear attenuation coefficient
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of a voxel of tissue to be 0.189. The linear attenuation coefficient
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of water for teh scanner equals 0.181.
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The CT number assigned to the pixel representing this voxel of
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tissue equals:
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a. -956 HU
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b. -173 HU
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c. +44 HU
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d. +1044 HU
l l llllllllll ANS: c lll
A CT system measures the average linear attenuation coefficient
l l l l l l l l
of a voxel of tissue to be 0.189. The linear attenuation coefficient
l l l l l l l l l l l l
of water for the scanner equals 0.181.
l l l l l l l
The CT number assigned to the pixel representing this voxel of
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tissue equals:
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a. -956 HU
l l
b. -173 HU
l l
c. +44 HU
l l
d. +1044 HU
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A noncontrast CT of the abdomen is ordered on Mr. Smith. The
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primary indication is a 15-year history of alcoholism. What can
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the technologist do to help the radiologist determine whether the
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patient has a fatty liver?
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,a. Administer IV contrast and repeat the series
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b. Administer additional oral contrast and repast the series
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c. Continue scanning through the pelvis, even though a pelvic
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examination was not ordered.
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d. Place a region of interest HU measurement within the liver and
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spleen before filming
l l ANS: d l llllllllll lll
A noncontrast CT of the abdomen is ordered on Mr. Smith. The
l l l l l l l l l l l
primary indication is a 15-year history of alcoholism. What can
l l l l l l l l l l
the technologist do to hep the radiologist determine whether the
l l l l l l l l l l
patient has a fatty liver?
l l l l l
a. Administer IV contrast and repeat the series
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b. Administer additional oral contrast and repeat the series.
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c. Continue scanning through the pelvis, even though a pelvic
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examination was not ordered.
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d. Place a region of interest HU measurement within the lever and
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spleen before filming.
l l ANS: d l llllllllll lll
A patient is being positioned for a routine scan of the brain. Why
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is he asked to tuck his chin down toward his chest?
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a. So that the scan time can be reduced
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b. to allow immobilization sponges to be used
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, c. to reduce the radiation exposure to the lens of the eyes
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d. To eliminate the need to tilt the gantry so that the axial scan mode
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can be used
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A patient who is scheduled for a CT study has an irregular
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heartbeat with a rate of approximately 85 bpm. For which
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clinical indication is this the most problematic?
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a. Corortery disease
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b. Assessment of ventricular function
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c. Possible thoracic aortic dissection
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d. Evaluation of congenital aortic arch anomaly.
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A portion of a herniated intervertebral disc that has migrated
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from its normal position is called a(n):
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a. bulging disc
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b. sequestered disc
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c. osteophyte
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d. protrusion
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A serious form of shock caused by extreme sensitivity to a
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particular antigen is ____ shock.
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