ASRT EXAM 1-3 QUESTIONS AND ANSWERS
Using a 75 kVp x-ray beam with a 0.25 mm lead-equivalent apron provides protection
from _______ of
the beam.
A) 55%
B) 66%
C) 77%
D) 88% - Answers - B) 66%
A 25-gauge, 0.5-inch needle is BEST used for a(n) ________ injection.
A) intradermal
B) intramuscular
C) subcutaneous
D) intravenous - Answers - C) subcutaneous
Which of the following technical factors simultaneously affects overall image quality and
radiation quantity
while producing the x-ray beam?
A) kVp
B) object-to-image distance (OID)
C) half-value layer (HVL)
D) detective quantum efficiency (DQE) - Answers - A) kVp
Which of the following is a cranial bone?
A) mandible
B) parietal
C) vomer
D) maxillary - Answers - B) parietal
Select the item below that is NOT required as part of a standardized technique chart.
A) source-to-image distance (SID)
B) object-to-image distance (OID)
C) mA
D) kVp - Answers - B) object-to-image distance (OID)
When positioning a patient for an AP projection (open-mouth technique) for C1-C2, the
________
plane/lines should be perpendicular to the image receptor.
A) coronal
B) interpupillary
C) occlusal
D) mentomeatal - Answers - C) occlusal
Which of the following radiographic evaluation criterion demonstrates proper inspiration
on a PA
,projection of the chest?
A) sternal ends of the clavicles equidistant from the vertebral column
B) trachea visible in the midline of the body
C) scapulae projected outside of lung field
D) 10 posterior ribs visible above diaphragm - Answers - D) 10 posterior ribs visible
above diaphragm
The BEST reason to use touch for emphasis when performing a radiologic examination
is to:
A) specify instructions or locations.
B) convey empathy.
C) measure a body part before choosing exposure factors.
D) identify landmarks on the patient - Answers - A) specify instructions or locations.
When obtaining images for a bone age protocol on an infant, it is BEST to use the
________ to
________.
A) large focal spot; increase OID
B) large focal spot; optimize spatial resolution
C) small focal spot; increase OID
D) small focal spot; optimize spatial resolution - Answers - D) small focal spot; optimize
spatial resolution
All of the following EXCEPT ________ will result in an increase in AEC response time.
A) decreasing the kVp
B) increasing the focal spot size
C) increasing the part thickness
D) increasing the source-to-image distance (SID) - Answers - B) increasing the focal
spot size
The ejection of an electron from an atom or molecule is known as:
A) ionization.
B) trephination.
C) excitation.
D) polymerization - Answers - A) ionization.
The primary function of filtration is to reduce:
A) patient skin dose.
B) operator dose.
C) film noise.
D) scattered radiation. - Answers - A) patient skin dose.
Primary radiation barriers must be AT LEAST ______ feet high.
A) 5
B) 6
C) 7
,D) 8 - Answers - C) 7
Irradiation of the embryo during the first week of development to equivalent doses
exceeding 200 mSv
frequenatly results in:
A) no effect.
B) death.
C) sensory organ damage.
D) microcephaly. - Answers - B) death
Which of the following is the BEST projection for demonstrating the intervertebral
foramina of the cervical
spine?
A) AP axial
B) AP open-mouth technique
C) lateral
D) AP/PA axial oblique - Answers - D) AP/PA axial oblique
Which type of communication includes eye contact, touch and tone of voice?
A) verbal
B) nonverbal
C) paralanguage
D) body language - Answers - B) nonverbal
The positive side of the x-ray tube is known as the
A) anode
B) rotor.
C) target.
D) stem. - Answers - A) anode
The letter "U" as an abbreviation can be mistaken for:
A) 0.
B) unilateral.
C) under.
D) microliters. - Answers - A) 0
Evaluation of ________ are the primary indications for arthrography of the shoulder.
A) rotator cuff tears or sternoclavicular joint separation
B) labral tears or sternoclavicular joint separation
C) rotator cuff tears or acromioclavicular joint separation
D) rotator cuff tears or labral tears - Answers - D) rotator cuff tears or labral tears
Which of the following structures is located in the mediastinum?
A) right middle lobe and esophagus
B) left upper lobe and heart
C) aorta and thyroid
, D) trachea and thymus - Answers - D) trachea and thymus
Which of the following components make up the induction motor in an imaging system?
A) anode and cathode
B) rectifiers and transformer
C) inverter and capacitor
D) rotor and stators - Answers - D) rotor and stators
Children have epiphyseal plates made of ________ that can be evaluated as part of
normal chronologic
age for bone age analysis.
A) fibrocartilage
B) elastic cartilage
C) hyaline cartilage
D) osteogenic cartilage - Answers - C) hyaline cartilage
The angle of the anode in the region of the target has a variation of ________ ° to
________ °.
A) 0; 3
B) 5; 6
C) 7; 20
D) 20; 45 - Answers - C) 7; 20
An image that has many shades of gray with few differences among them is defined as
exhibiting:
A) high spatial resolution.
B) low contrast.
C) high dynamic range.
D) low bit depth. - Answers - B) low contrast
For children older than 3 years, bone age is MOST commonly determined by comparing
a radiograph of
________ with a set of reference images.
A) the hand and wrist.
B) bilateral hips.
C) bilateral knees.
D) the foot and ankle. - Answers - A) the hand and wrist
Radiation that exits the patient and is directed toward the receptor is referred to as
________ radiation.
A) primary
B) scatter
C) secondary
D) remnant - Answers - D) remnant
Which of the following is an example of a primary barrier?
Using a 75 kVp x-ray beam with a 0.25 mm lead-equivalent apron provides protection
from _______ of
the beam.
A) 55%
B) 66%
C) 77%
D) 88% - Answers - B) 66%
A 25-gauge, 0.5-inch needle is BEST used for a(n) ________ injection.
A) intradermal
B) intramuscular
C) subcutaneous
D) intravenous - Answers - C) subcutaneous
Which of the following technical factors simultaneously affects overall image quality and
radiation quantity
while producing the x-ray beam?
A) kVp
B) object-to-image distance (OID)
C) half-value layer (HVL)
D) detective quantum efficiency (DQE) - Answers - A) kVp
Which of the following is a cranial bone?
A) mandible
B) parietal
C) vomer
D) maxillary - Answers - B) parietal
Select the item below that is NOT required as part of a standardized technique chart.
A) source-to-image distance (SID)
B) object-to-image distance (OID)
C) mA
D) kVp - Answers - B) object-to-image distance (OID)
When positioning a patient for an AP projection (open-mouth technique) for C1-C2, the
________
plane/lines should be perpendicular to the image receptor.
A) coronal
B) interpupillary
C) occlusal
D) mentomeatal - Answers - C) occlusal
Which of the following radiographic evaluation criterion demonstrates proper inspiration
on a PA
,projection of the chest?
A) sternal ends of the clavicles equidistant from the vertebral column
B) trachea visible in the midline of the body
C) scapulae projected outside of lung field
D) 10 posterior ribs visible above diaphragm - Answers - D) 10 posterior ribs visible
above diaphragm
The BEST reason to use touch for emphasis when performing a radiologic examination
is to:
A) specify instructions or locations.
B) convey empathy.
C) measure a body part before choosing exposure factors.
D) identify landmarks on the patient - Answers - A) specify instructions or locations.
When obtaining images for a bone age protocol on an infant, it is BEST to use the
________ to
________.
A) large focal spot; increase OID
B) large focal spot; optimize spatial resolution
C) small focal spot; increase OID
D) small focal spot; optimize spatial resolution - Answers - D) small focal spot; optimize
spatial resolution
All of the following EXCEPT ________ will result in an increase in AEC response time.
A) decreasing the kVp
B) increasing the focal spot size
C) increasing the part thickness
D) increasing the source-to-image distance (SID) - Answers - B) increasing the focal
spot size
The ejection of an electron from an atom or molecule is known as:
A) ionization.
B) trephination.
C) excitation.
D) polymerization - Answers - A) ionization.
The primary function of filtration is to reduce:
A) patient skin dose.
B) operator dose.
C) film noise.
D) scattered radiation. - Answers - A) patient skin dose.
Primary radiation barriers must be AT LEAST ______ feet high.
A) 5
B) 6
C) 7
,D) 8 - Answers - C) 7
Irradiation of the embryo during the first week of development to equivalent doses
exceeding 200 mSv
frequenatly results in:
A) no effect.
B) death.
C) sensory organ damage.
D) microcephaly. - Answers - B) death
Which of the following is the BEST projection for demonstrating the intervertebral
foramina of the cervical
spine?
A) AP axial
B) AP open-mouth technique
C) lateral
D) AP/PA axial oblique - Answers - D) AP/PA axial oblique
Which type of communication includes eye contact, touch and tone of voice?
A) verbal
B) nonverbal
C) paralanguage
D) body language - Answers - B) nonverbal
The positive side of the x-ray tube is known as the
A) anode
B) rotor.
C) target.
D) stem. - Answers - A) anode
The letter "U" as an abbreviation can be mistaken for:
A) 0.
B) unilateral.
C) under.
D) microliters. - Answers - A) 0
Evaluation of ________ are the primary indications for arthrography of the shoulder.
A) rotator cuff tears or sternoclavicular joint separation
B) labral tears or sternoclavicular joint separation
C) rotator cuff tears or acromioclavicular joint separation
D) rotator cuff tears or labral tears - Answers - D) rotator cuff tears or labral tears
Which of the following structures is located in the mediastinum?
A) right middle lobe and esophagus
B) left upper lobe and heart
C) aorta and thyroid
, D) trachea and thymus - Answers - D) trachea and thymus
Which of the following components make up the induction motor in an imaging system?
A) anode and cathode
B) rectifiers and transformer
C) inverter and capacitor
D) rotor and stators - Answers - D) rotor and stators
Children have epiphyseal plates made of ________ that can be evaluated as part of
normal chronologic
age for bone age analysis.
A) fibrocartilage
B) elastic cartilage
C) hyaline cartilage
D) osteogenic cartilage - Answers - C) hyaline cartilage
The angle of the anode in the region of the target has a variation of ________ ° to
________ °.
A) 0; 3
B) 5; 6
C) 7; 20
D) 20; 45 - Answers - C) 7; 20
An image that has many shades of gray with few differences among them is defined as
exhibiting:
A) high spatial resolution.
B) low contrast.
C) high dynamic range.
D) low bit depth. - Answers - B) low contrast
For children older than 3 years, bone age is MOST commonly determined by comparing
a radiograph of
________ with a set of reference images.
A) the hand and wrist.
B) bilateral hips.
C) bilateral knees.
D) the foot and ankle. - Answers - A) the hand and wrist
Radiation that exits the patient and is directed toward the receptor is referred to as
________ radiation.
A) primary
B) scatter
C) secondary
D) remnant - Answers - D) remnant
Which of the following is an example of a primary barrier?
