ASRT EXAM 4 QUESTIONS AND ANSWERS
d - Answers - Which of the following statements is NOT TRUE regarding anatomically
programmed radiography (APR)?
a. It can be used in conjunction with automatic exposure control (AEC)
b. APR allows for specific anatomical part selection
c. It displays manual exposure factors
d. APR prevents making adjustments to mAs
c - Answers - The minimum length of the exposure cord for mobile x-ray units is:
a. 12 feet
b. 9 feet
c. 6 feet
d. 3 feet
b - Answers - During myelography, the patient's neck should be hyperextended when
the contrast medium nears the cervical region of the spine to:
a. make the patient more comfortable
b. prevent the contrast medium from entering the cerebral ventricles
c. prevent the contrast medium from entering the subarachnoid space
d. prevent the contrast medium from entering the thoracic region of the spine.
d - Answers - The ________ risk model predicts that excess cancer deaths from
irradiation will increase over time as the naturally occurring risk increases with age in
the nonirradiated population.
a. absolute
b. lethal dose (LD) 50/30
c. threshold response
d. relative
c - Answers - To demonstrate the zygapophyseal joints of the thoracic vertebrae, a
radiographer should place the patient in a ________ position.
a. lateral
b. 45° oblique
c. 70° oblique
d. PA
d - Answers - Which of the following statements is TRUE regarding source-to-image
distance (SID)?
,a. decreasing SID decreases Compton scatter
b. decreasing SID decreases magnification
c. increasing SID increases receptor exposure
d. increasing SID decreases distortion.
a - Answers - For conventional fluoroscopy, the light intensities must be converted by
the ________ to be viewed on a television monitor.
a. CCD
b. electrostatic lenses
c. output phosphor
d. focal point
a - Answers - When acquiring a lateral projection of the chest, which position is BEST
for demonstrating the heart and left lung?
a. upright; left lateral
b. upright; right lateral
c. recumbent; left lateral
d. recumbent; right lateral
b - Answers - The purpose of a technique chart is to:
a. minimize scatter
b. adhere to ALARA principles
c. reduce positioning errors
d. control for patient motion
a - Answers - On an axiolateral projection of the temporomandibular joints (TMJs), the
patient's head is placed in a lateral position with the TMJ of interest closest to the image
receptor. The central ray is angled caudally about 30°. On the image, the TMJ of
interest will be projected ________ to the other TMJ.
a. superiorly
b. inferiorly
c. anteriorly
d. posteriorly
d - Answers - The condition in which an object's radiographic image size is greater than
its actual size is called:
a. foreshortening
b. elongation
c. distortion
d. magnification
, c - Answers - Of the following, ___________ is the MOST likely to result in changes in
the DNA of circulating lymphocytes.
a. a magnetic resonance exam
b. an ultrasound exam
c. cardiac catheterization
d. chest radiography
d - Answers - Which of the following is the definition of fraud?
a. when a patient is restrained or believes that he or she is being restrained against his
or her will
b. when a patient believes that he or she has been threatened in a manner to invoke
fear or expect immediate bodily harm
c. touching a patient without his or her consent, normally when the patient perceives he
or she has been touched in an offensive way
d. willful and intentional misrepresentation of facts that might cause harm to an
individual or result in a loss of right or property
d - Answers - The ________ separates the thoracic cavity from the abdominal cavity.
a. trachea
b. parenchyma
c. carina
d. diaphragm
b - Answers - The right kidney is placed perpendicular to the image receptor in the
________ position.
a. left posterior oblique (LPO)
b. right posterior oblique (RPO)
c. lateral
d. supine
a - Answers - For a lateral projection of the humerus, it is necessary to have the
coronal plane passing through the humeral epicondyles aligned ________ to the image
receptor.
a. perpendicular
b. parallel
c. at a 45° angle
d. at a 30° angle
a - Answers - The measurement of the half-value layer of the beam is an assessment
of:
d - Answers - Which of the following statements is NOT TRUE regarding anatomically
programmed radiography (APR)?
a. It can be used in conjunction with automatic exposure control (AEC)
b. APR allows for specific anatomical part selection
c. It displays manual exposure factors
d. APR prevents making adjustments to mAs
c - Answers - The minimum length of the exposure cord for mobile x-ray units is:
a. 12 feet
b. 9 feet
c. 6 feet
d. 3 feet
b - Answers - During myelography, the patient's neck should be hyperextended when
the contrast medium nears the cervical region of the spine to:
a. make the patient more comfortable
b. prevent the contrast medium from entering the cerebral ventricles
c. prevent the contrast medium from entering the subarachnoid space
d. prevent the contrast medium from entering the thoracic region of the spine.
d - Answers - The ________ risk model predicts that excess cancer deaths from
irradiation will increase over time as the naturally occurring risk increases with age in
the nonirradiated population.
a. absolute
b. lethal dose (LD) 50/30
c. threshold response
d. relative
c - Answers - To demonstrate the zygapophyseal joints of the thoracic vertebrae, a
radiographer should place the patient in a ________ position.
a. lateral
b. 45° oblique
c. 70° oblique
d. PA
d - Answers - Which of the following statements is TRUE regarding source-to-image
distance (SID)?
,a. decreasing SID decreases Compton scatter
b. decreasing SID decreases magnification
c. increasing SID increases receptor exposure
d. increasing SID decreases distortion.
a - Answers - For conventional fluoroscopy, the light intensities must be converted by
the ________ to be viewed on a television monitor.
a. CCD
b. electrostatic lenses
c. output phosphor
d. focal point
a - Answers - When acquiring a lateral projection of the chest, which position is BEST
for demonstrating the heart and left lung?
a. upright; left lateral
b. upright; right lateral
c. recumbent; left lateral
d. recumbent; right lateral
b - Answers - The purpose of a technique chart is to:
a. minimize scatter
b. adhere to ALARA principles
c. reduce positioning errors
d. control for patient motion
a - Answers - On an axiolateral projection of the temporomandibular joints (TMJs), the
patient's head is placed in a lateral position with the TMJ of interest closest to the image
receptor. The central ray is angled caudally about 30°. On the image, the TMJ of
interest will be projected ________ to the other TMJ.
a. superiorly
b. inferiorly
c. anteriorly
d. posteriorly
d - Answers - The condition in which an object's radiographic image size is greater than
its actual size is called:
a. foreshortening
b. elongation
c. distortion
d. magnification
, c - Answers - Of the following, ___________ is the MOST likely to result in changes in
the DNA of circulating lymphocytes.
a. a magnetic resonance exam
b. an ultrasound exam
c. cardiac catheterization
d. chest radiography
d - Answers - Which of the following is the definition of fraud?
a. when a patient is restrained or believes that he or she is being restrained against his
or her will
b. when a patient believes that he or she has been threatened in a manner to invoke
fear or expect immediate bodily harm
c. touching a patient without his or her consent, normally when the patient perceives he
or she has been touched in an offensive way
d. willful and intentional misrepresentation of facts that might cause harm to an
individual or result in a loss of right or property
d - Answers - The ________ separates the thoracic cavity from the abdominal cavity.
a. trachea
b. parenchyma
c. carina
d. diaphragm
b - Answers - The right kidney is placed perpendicular to the image receptor in the
________ position.
a. left posterior oblique (LPO)
b. right posterior oblique (RPO)
c. lateral
d. supine
a - Answers - For a lateral projection of the humerus, it is necessary to have the
coronal plane passing through the humeral epicondyles aligned ________ to the image
receptor.
a. perpendicular
b. parallel
c. at a 45° angle
d. at a 30° angle
a - Answers - The measurement of the half-value layer of the beam is an assessment
of:
