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Exam (elaborations)

CT Registry Practice Test Exam Questions and Answers 100% Solved

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CT Registry Practice Test Exam Questions and Answers 100% Solved Which onw of the following statements regarding the petrous pyramids is FALSE? A. it contains the middle and inner ear structures B. it extends medially beyond the sphenoid bones C. its end forms the antrum of the eustachian tub...

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  • October 11, 2024
  • 40
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • CT Registry
  • CT Registry
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JOSHCLAY
©JOSHCLAY 2024/2025. YEAR PUBLISHED, 2024.
CT Registry Practice Test Exam

Questions and Answers 100% Solved


Which onw of the following statements regarding the petrous pyramids is

FALSE?

A. it contains the middle and inner ear structures

B. it extends medially beyond the sphenoid bones

C. its end forms the antrum of the eustachian tubule

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

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

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

A. 2

B. 3

C. 5

D. 7.5 - ✔✔C. 5

The gantry angle for a sinus cavity should be:

A. parallel to the roof of the hard palate

B. sagittal to the roof of the hard palate

,©JOSHCLAY 2024/2025. YEAR PUBLISHED, 2024.
C. parallel to the floor of the orbit

D. parallel to the roof of the orbit - ✔✔A. parallel to thw roof of the hard

palate

Slip ring technology made spural CT a possibility by:

A. improved insulting and cooling systems, allowing CT scanners to run at

a higher speed and tempurature

B. decreasing the amount of radiation per slice

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

accurate beam direction

D. allowing the tube and detectors to rotate continuously - ✔✔D.

allowing the tube and detectors to rotate continuously

Which of thw following is NOT a factot affecting choice of a particular

contrast agent?

A. an institutional contract with the manufacturer

B. cost

C. the use of drip infusion vs. power injector

D. radiologist preference - ✔✔B. cost

The appropriate length of scan delay in seconds following contrast

injectiom for orbital scan is:

A. 10 sec

,©JOSHCLAY 2024/2025. YEAR PUBLISHED, 2024.
B. 30 sec

C. 60 sec

D. 120 sec - ✔✔C. 60 sec

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

area of the brain?

A. 200/150

B. 250/50

C. 83/35

D. 2000/150 - ✔✔B. 250/50

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

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

B. the introduction of slip ring technology

C. the use of nutating rings

D. translation-rotation - ✔✔A. the use of up to 2000 detectors in a fixed

ring

CT plays a limited role in evaluation of the distal esophagus because:

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

lining that absorbs barium

B. the surrounding tissues are heavily vascularized, making it difficult to

distinguish between the esophagus and the tissues

, ©JOSHCLAY 2024/2025. YEAR PUBLISHED, 2024.
C. this area of the esopagus is difficult to distend with oral contrast agents

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

making the area difficult to clear of residual stomach contents - ✔✔C.

this area of the esopagus is difficult to distend with oral contrast agents

The onset of most serious adverse reactions to contrast media occurs

_________ post administration.

A. within 5 minutes

B. within 15 minutes

C. within 30 minutes

D. after 1 hour - ✔✔A. within 5 minutes

The field of view for a craniofacial scan should include the:

A. face only

B. entire skull and face

C. orbital and nasal bones only

D. nasal and mandibular bones only - ✔✔B. entire skull and face

Which of the following statements is FALSE regarding the maxillary

sinuses?

A. they are the largest sinus cavities

B. they lie above the roots of the upper teeth

C. they drain through the infundibulum

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