CT REGISTRY PRACTICE TEST 2024 UPDATE |QUESTIONS WITH CORRECT ANSWERS GRADED A+

CT REGISTRY PRACTICE TEST 2024 UPDATE |
QUESTIONS WITH CORRECT ANSWERS
GRADED A+




Which one of the following statements regarding the petrous
g g g g g g g g


pyramids is FALSE?
g g g




A. it contains the middle and inner ear structures
g g g g g g g g




B. it extends medially beyond the sphenoid bones
g g g g g g g




C. its end forms the antrum of the eustachian tubule
g g g g g g g g g




D. ita upper surface forms part of the floor of the middle cranial
g g g g g g g g g g g g


fossa
g ANS: C. its end forms the antrum of the eustachian
gggggggggg ggg g g g g g g g g


tubule
g




CTA may require LOCM injection rates as high as ________
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mL/sec.
g




A. 2g




B. 3g




C. 5g




D. 7.5
g gggggggggg ANS: C. 5 ggg g




The gantry angle for a sinus cavity should be:
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A. parallel to the roof of the hard palate
g g g g g g g g




B. sagittal to the roof of the hard palate
g g g g g g g g

,C. parallel to the floor of the orbit
g g g g g g g




D. parallel to the roof of the orbit
g g g g g g g gggggggggg ANS: A. parallel to thw ggg g g g


roof of the hard palate
g g g g g




Slip ring technology made spural CT a possibility by:
g g g g g g g g




A. improved insulting and cooling systems, allowing CT scanners
g g g g g g g g


to run at a higher speed and tempurature
g g g g g g g g




B. decreasing the amount of radiation per slice
g g g g g g g




C. allowing the gantry to stop rotating and reverse course while
g g g g g g g g g g


maintaining accurate beam direction
g g g g




D. allowing the tube and detectors to rotate continuously
g g g g g g g g ggggggggg


ANS: D. allowing the tube and detectors to rotate continuously
g ggg g g g g g g g g




Which of thw following is NOT a factot affecting choice of a
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particular contrast agent?
g g g g




A. an institutional contract with the manufacturer
g g g g g g




B. cost
g




C. the use of drip infusion vs. power injector
g g g g g g g g




D. radiologist preference
g g gggggggggg ANS: B. cost ggg g




The appropriate length of scan delay in seconds following contrast
g g g g g g g g g


injectiom for orbital scan is:
g g g g g




A. 10 sec
g g




B. 30 sec
g g




C. 60 sec
g g

,D. 120 sec
g g gggggggggg ANS: C. 60 sec ggg g g




What are the most appropriate filming parameters/formats for the
g g g g g g g g


subdural area of the brain?
g g g g g




A. 200/150
g




B. 250/50
g




C. 83/35
g




D. 2000/150
g gggggggggg ANS: B. 250/50 ggg g




The major change in CT technology seen in 4th generation
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scanners was:
g g




A. the use of up to 2000 detectora in a fixed ring
g g g g g g g g g g g




B. the introduction of slip ring technology
g g g g g g




C. the use of nutating rings
g g g g g




D. translation-rotation
g gggggggggg ANS: A. the use of up to 2000
ggg g g g g g g


detectors in a fixed ring
g g g g g




CT plays a limited role in evaluation of the distal esophagus
g g g g g g g g g g


because:
g




A. the tissue at the gastroesophageal junction is covered by a thick
g g g g g g g g g g g


mucous lining that absorbs barium
g g g g g




B. the surrounding tissues are heavily vascularized, making it
g g g g g g g g


difficult to distinguish between the esophagus and the tissues
g g g g g g g g g




C. this area of the esopagus is difficult to distend with oral contrast
g g g g g g g g g g g g


agents
g

, D. oral contrast agents cause a high degree of gastroesophageal
g g g g g g g g g


reflyx, making the area difficult to clear of residual stomach
g g g g g g g g g g


contents
g ANS: C. this area of the esopagus is difficult to
gggggggggg ggg g g g g g g g g


distend with oral contrast agents
g g g g g




The onset of most serious adverse reactions to contrast media
g g g g g g g g g


occurs _________ post administration.
g g g g




A. within 5 minutes
g g g




B. within 15 minutes
g g g




C. within 30 minutes
g g g




D. after 1 hour
g g g gggggggggg ANS: A. within 5 minutes ggg g g g




The field of view for a craniofacial scan should include the:
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A. face only
g g




B. entire skull and face
g g g g




C. orbital and nasal bones only
g g g g g




D. nasal and mandibular bones only
g g g g g gggggggggg ANS: B. entire skull and
ggg g g g


face
g




Which of the following statements is FALSE regarding the
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maxillary sinuses?
g g




A. they are the largest sinus cavities
g g g g g g




B. they lie above the roots of the upper teeth
g g g g g g g g g




C. they drain through the infundibulum
g g g g g