ARRT Registry Exam review Questions and
Correct Answers
What is the correct term used to describe an intravenous injection
of a concentrated volume of contrast media?
a. bolus
b. infusion
c. extravasation
d. luminal Ans: — a. bolus
Which of the following methods utilizes a detector that captures x-
ray energy and converts it into an electronic signal?
a. indirect capture
b. CCD
c. cassette based radiography
d. direct capture Ans: — d. direct capture
The energy of a characteristic x-ray photon created when an L shell
electron fills a K shell vacancy in a tungsten atom will have which
of the following energies?
a. 69.5 keV
b. 57.5 keV
c. 91.5 keV
d. 12 keV Ans: — b. 57.5 keV
The energy of characteristic photons is determined by the
difference in binding energies between the two electron shells
involved in the process, which in this question are K and L shells.
69.5 (K shell) minus 12 (L shell) equals 57.5.
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Identify the position that will place the positive contrast agent in
the body of the stomach and pyloris during a double contrast
upper GI exam?
a. recumbent LPO
b. supine
c. recumbent RPO
d. prone Ans: — d. prone
which position/projection will best demonstrate the broad aspect
of the frontal air sinus? Ans: — PA
Which position will best demonstrate the right axillary portion of
the ribs? Ans: — RPO
Which position will emphasize the mucosal lining of the medial
wall of the descending colon during a lower GI exam? Ans: — left
lateral decubitus
Which projection of the wrist will best demonstrate the
interspaces of the carpal bone? Ans: — AP
An image is acquired with computed radiography using which of
the following methods?
a. a cassette that is electronically charged
b. conventional film/screen processing
c. the use of a storage phosphor
d. nonne of the above Ans: — c. the use of a storage phosphor
A transformer constructed with 10,00 primary turns and 2,500
secondary turns will yield an output voltage of _____ when being
supplied with 210 volts.
a. 2710 volts
b. 52.5 volts
c. 840 volts
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d. 525 volts Ans: — b. 52.5 volts
Which of the following circuit components is considered to be the
source for kVp?
a. step-up transformer
b. autotransformer
c. step-down transformer
d. high voltage transformer Ans: — b. autotransformer
Which of the following meds is administered to a patient during an
allergic reaction?
a. Adenocard
b. Intropin
c. Lasix
d. Decadron Ans: — d. Decadron
If the improper body part is selected from the exam menu, which
of the following may result?
a. there will be no image
b. there may be image misinterpretation
c. will exhibit proper contrast and density
d. image sharpness will not be affected Ans: — b. there may be
image misinterpretation
Which of the following combinations are needed in digital
radiography system to produce an image?
a. intensifying screen & TFT
b. x-ray absorber & CCD
c.. storage phosphor plate & CCD
d. storage phosphor plate & TFT Ans: — b. x-ray absorber & CCD
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Exposure latitude is also known as which of the following?
a. dynamic range
b. spatial resolution
c. subject contrast
d. characteristic response Ans: — a. dynamic range
All of the following components are within the glass/metal
enclosure of the x-ray tube except...
a. anode
b. stators
c. rotors
d. filament wires Ans: — b. stators
Universal precautions should be practiced on..
a. all isolation patients
b. CCU patients
c. pediatric patients
d. All patients Ans: — d. All patients
What is the minimum source to skin distance allowed for a mobile
fluoroscopic unit? Ans: — 12 inches
Pregnant technologists should not receive more than ___ rem for
the duration of the pregnancy.
a. 3
b. 0.5
c. 0.15
d. 2.5 Ans: — b. 0.5 rem
How much annual exposure can a 49 year old occupational worker
receive?
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