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ASRT CT PRACTICE TEST QUESTIONS WITH CORRECT ANSWERS
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ASRT CT PRACTICE TEST QUESTIONS WITH CORRECT ANSWERS
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ASRT CT PRACTICE TEST QUESTIONSWITH CORRECT ANSWERS
The z-axis refers to the ______ plane.
a) coronal
b) axial
c) sagittal
d) transverse - Answer-axial
Generators are often times located within the gantry. These types of generators are
typically:
a) full wave/three-phase.
b) medium frequency.
c) high frequency.
d) multiwave/two-phase. - Answer-high frequency
Modern CT scanners rely on ____ to process acquired data. - Answer-minicomputers
When the x, y and z planes (length, width and height) are equal, the volume data set is:
a) isotropic.
b) linear.
c) anisotropic.
d) rectangle-shaped. - Answer-isotropic
Which of the following factors decrease contrast resolution?
a) small FOV
b) smaller matrix size
c) smaller pixel size
d) higher mAs - Answer-smaller pixel size
Ct scanners x-ray tube voltages range from ____ to ___ kV
a) 60, 100
b) 80, 120
c) 80, 140
d) 100, 160 - Answer-80, 140
Which of the following conditions is an indication for a CT scan of the head without IV
contrast?
a) stroke
b) aneurysm
c) metastatic disease
d) arteriovenous malformation - Answer-stroke
, When performing a routine chest CT scan, the scanner should be zeroed with the laser
light at the:
a) jugular notch
b) xiphoid tip
c) EAM
d)top of shoulders - Answer-top of shoulders
To view a CT image on a LCD monitor, data must undergo:
a) digital to analog conversion
b) analog to digital conversion
c) digitization
d) quantization - Answer-DAC
Which of the following is the MOST effective type of CT detector?
a) scintillation
b) xenon gas
c)linear array
d) photodiose - Answer-scintillation
If extravasation occurs, contrast can be dissipated by reducing its viscosity. This can be
accomplished by applying a:
a) hot pack
b) cold pack
c) sterile bandage
d) PICC line - Answer-hot pack
For a routine chest CT, the recommended pitch is:
a. 0.5 to 0.8
b. 0.8 to 1.0
c. 0.8 to 1.35
d. 0.5 to 1.35 - Answer-0.8-1.35
Which of the following is NOT considered part of the ethmoid bone?
a) superior nasal conchae
b) middle nasal conchae
c) inferior nasal conchae
d) perpendicular plate - Answer-inferior nasal conchae
Which of the following is NOT considered part of the middle mediastinum?
a) heart
b) superior vena cava
c) thoractic aorta
d) inferior vena cava - Answer-thoractic aorta
Which of the following structures is located between the cerebral hemispheres?
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