ASRT Exam 4
d - answer 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 - answer 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
c - answer________ are used to reduce the effect of scatter radiation.
a. Intensifying screens
b. Compensating filters
c. Radiographic grids
d. Compression devices
a - answerAnteroposterior (AP) oblique images of the chest can be used when a patient
is too ill for upright or prone positioning. When the patient is in a 45° right posterior
oblique (RPO) position:
a. the right lung field is best displayed
b. the left lung field is best displayed
c. both lungs are well displayed
d. neither lung is well displayed
c - answerWhen evaluating an image of the pelvis, the radiographer notes that there is
maximum demonstration of the lesser trochanters. Was this patient positioned correctly
for a non-trauma AP projection of the pelvis?
a. Yes, because the lesser trochanters are demonstrated in profile.
b. Yes, because there is no foreshortening of the femoral necks.
c. No, because the femoral necks are not parallel with the image receptor.
d. No, because the femora have not been rotated enough in the lateral direction
c - answerThe radiographer can best control the production of scatter radiation by:
,a. increasing the kVp
b. adding filtration
c. reducing field size
d. using a grid
b - answerWhen a patient has parenteral administration of medication, the medication is
NOT delivered via:
a. injection into a muscle
b. the gastrointestinal system
c. the sublingual area
d. injection into a vein
d - answerA 58-year-old man is in the radiology department for an upper GI series
(UGI). He has followed nothing by mouth (NPO) instructions and has diabetes. When
the radiographer stands the patient to position him for the upright portion of the study,
the patient says he is dizzy and feeling weak. He took his morning medications along
with his normal dose of insulin. The patient MOST likely is experiencing ________, and
the radiographer should ________.
a. hyperglycemia; give the patient a cup of water to drink
b. hypoglycemia; give the patient a carbonated drink such as seltzer water or a soda
c. hyperglycemia; give the patient something salty to eat
d. hypoglycemia; give the patient something sweet such as fruit juice
b - answerDuring 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 - answerThe ________ 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 - answerTo 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 - answerWhich 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 - answerFor 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 - answerWhen 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 - answerThe 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 - answerOn 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 - answer 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 - answer 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
c - answer________ are used to reduce the effect of scatter radiation.
a. Intensifying screens
b. Compensating filters
c. Radiographic grids
d. Compression devices
a - answerAnteroposterior (AP) oblique images of the chest can be used when a patient
is too ill for upright or prone positioning. When the patient is in a 45° right posterior
oblique (RPO) position:
a. the right lung field is best displayed
b. the left lung field is best displayed
c. both lungs are well displayed
d. neither lung is well displayed
c - answerWhen evaluating an image of the pelvis, the radiographer notes that there is
maximum demonstration of the lesser trochanters. Was this patient positioned correctly
for a non-trauma AP projection of the pelvis?
a. Yes, because the lesser trochanters are demonstrated in profile.
b. Yes, because there is no foreshortening of the femoral necks.
c. No, because the femoral necks are not parallel with the image receptor.
d. No, because the femora have not been rotated enough in the lateral direction
c - answerThe radiographer can best control the production of scatter radiation by:
,a. increasing the kVp
b. adding filtration
c. reducing field size
d. using a grid
b - answerWhen a patient has parenteral administration of medication, the medication is
NOT delivered via:
a. injection into a muscle
b. the gastrointestinal system
c. the sublingual area
d. injection into a vein
d - answerA 58-year-old man is in the radiology department for an upper GI series
(UGI). He has followed nothing by mouth (NPO) instructions and has diabetes. When
the radiographer stands the patient to position him for the upright portion of the study,
the patient says he is dizzy and feeling weak. He took his morning medications along
with his normal dose of insulin. The patient MOST likely is experiencing ________, and
the radiographer should ________.
a. hyperglycemia; give the patient a cup of water to drink
b. hypoglycemia; give the patient a carbonated drink such as seltzer water or a soda
c. hyperglycemia; give the patient something salty to eat
d. hypoglycemia; give the patient something sweet such as fruit juice
b - answerDuring 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 - answerThe ________ 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 - answerTo 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 - answerWhich 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 - answerFor 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 - answerWhen 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 - answerThe 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 - answerOn 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
