1|Page
ARRT CT REGISTRY EXAM AND STUDY GUIDE
NEWEST 2025 TEST BANK| COMPLETE 900 REAL
EXAM QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) ALREADY GRADED
A+| ARRT CT REGISTRY EXAM PREP (BRAND NEW!!)
Which of the following technical factors exhibits a direct effect on
patient dose?
a. matrix size
b. algorithm
c. milliampere-seconds (mAs)
d window level - Correct Answer - c. milliampere-seconds (mAs)
Used in determining the biologic effect of iodinated contrast media, the
term ___________refers to the number of ions formed when a substance
dissociates in solution.
a. solubility
b. osmolality
c. concentration
d. iodination - Correct Answer - b. osmolality
Which of the following laboratory values can be used to evaluate the
renal function of a patient.
a. blood urea nitrogen (BUN)
b. partial thromboplastin time
pg. 1
,2|Page
c. creatinine
d. both a and c - Correct Answer - d. both a and c
A(n) ________________ infection is one that patients acquire during
their stay in a health care institution.
a. blood-borne
b. nosocomial
c. iatrogenic
d. staphylococcal - Correct Answer - b. nosocomial
During CT examinations, patients should be shielded above and below
because of
a. the rotational nature of the xray tube
b. extremely high kilo volt peak (kVp) techniques
c. lack of filtration of the CT beam
d. reduced collimation of the CT beam - Correct Answer - a. the
rotational nature of the xray tube
Which of the following would be best suited for intravenous injection of
contrast material with a power injector?
a. a butterfly needle
b. a central venous line
c. a 23-gauge spinal needle
d. an angiocatheter - Correct Answer - d. angiocatheter
pg. 2
,3|Page
A(n) __________________ contrast material may be described as one
that does not dissociate into charged particles in solution.
a. neutral
b. non-ionic
c. osmolar
d. ionic - Correct Answer - b. non-ionic
The lumen of needles used for the injection of contrast media varies in
diameter. the unit used to describe this diameter is called
a. length
b. cubic centimeter (cc)
c. gauge
d. pounds per square inch (psi) - Correct Answer - c. gauge
The average range for normal adult blood urea nitrogen (BUN) levels is
approximately
a. 1-4 mg/dL
b. 5-20 mg/dL
c. 23-30 mg/dL
d. 45-60 mg/dL - Correct Answer - B. 5-20 mg/dL
Which of the following terms describes a condition in which cerebral
ischemia is caused by systemic hypotension?
a. vasovagal reaction
pg. 3
, 4|Page
b. myocardial infarction
c. transient ischemic attack
d. hydrocephalus - Correct Answer - a. vasovagal reaction
Which of the following interactions between x-ray beam and matter
results in the largest amount of patient dose?
a. characteristic
b. Comptom scatter
c. bremsstrahlung
d. photoelectric effect - Correct Answer - d. photoelectric effect
Which of the following terms is used to describe the intravenous
injection of medication or contrast agent in one complete dose over a
short period of time?
a. infusion
b. bolus
c. intravenous drip
d. infuse-a-port - Correct Answer - b. bolus
An intrathecal injection before a CT examination of the lumbar spine
places iodinated contrast material directly into the
a. subarachnoid space
b. dura mater
c. vertebral foramen
pg. 4
ARRT CT REGISTRY EXAM AND STUDY GUIDE
NEWEST 2025 TEST BANK| COMPLETE 900 REAL
EXAM QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) ALREADY GRADED
A+| ARRT CT REGISTRY EXAM PREP (BRAND NEW!!)
Which of the following technical factors exhibits a direct effect on
patient dose?
a. matrix size
b. algorithm
c. milliampere-seconds (mAs)
d window level - Correct Answer - c. milliampere-seconds (mAs)
Used in determining the biologic effect of iodinated contrast media, the
term ___________refers to the number of ions formed when a substance
dissociates in solution.
a. solubility
b. osmolality
c. concentration
d. iodination - Correct Answer - b. osmolality
Which of the following laboratory values can be used to evaluate the
renal function of a patient.
a. blood urea nitrogen (BUN)
b. partial thromboplastin time
pg. 1
,2|Page
c. creatinine
d. both a and c - Correct Answer - d. both a and c
A(n) ________________ infection is one that patients acquire during
their stay in a health care institution.
a. blood-borne
b. nosocomial
c. iatrogenic
d. staphylococcal - Correct Answer - b. nosocomial
During CT examinations, patients should be shielded above and below
because of
a. the rotational nature of the xray tube
b. extremely high kilo volt peak (kVp) techniques
c. lack of filtration of the CT beam
d. reduced collimation of the CT beam - Correct Answer - a. the
rotational nature of the xray tube
Which of the following would be best suited for intravenous injection of
contrast material with a power injector?
a. a butterfly needle
b. a central venous line
c. a 23-gauge spinal needle
d. an angiocatheter - Correct Answer - d. angiocatheter
pg. 2
,3|Page
A(n) __________________ contrast material may be described as one
that does not dissociate into charged particles in solution.
a. neutral
b. non-ionic
c. osmolar
d. ionic - Correct Answer - b. non-ionic
The lumen of needles used for the injection of contrast media varies in
diameter. the unit used to describe this diameter is called
a. length
b. cubic centimeter (cc)
c. gauge
d. pounds per square inch (psi) - Correct Answer - c. gauge
The average range for normal adult blood urea nitrogen (BUN) levels is
approximately
a. 1-4 mg/dL
b. 5-20 mg/dL
c. 23-30 mg/dL
d. 45-60 mg/dL - Correct Answer - B. 5-20 mg/dL
Which of the following terms describes a condition in which cerebral
ischemia is caused by systemic hypotension?
a. vasovagal reaction
pg. 3
, 4|Page
b. myocardial infarction
c. transient ischemic attack
d. hydrocephalus - Correct Answer - a. vasovagal reaction
Which of the following interactions between x-ray beam and matter
results in the largest amount of patient dose?
a. characteristic
b. Comptom scatter
c. bremsstrahlung
d. photoelectric effect - Correct Answer - d. photoelectric effect
Which of the following terms is used to describe the intravenous
injection of medication or contrast agent in one complete dose over a
short period of time?
a. infusion
b. bolus
c. intravenous drip
d. infuse-a-port - Correct Answer - b. bolus
An intrathecal injection before a CT examination of the lumbar spine
places iodinated contrast material directly into the
a. subarachnoid space
b. dura mater
c. vertebral foramen
pg. 4
