ASRT EXAM 1 UPDATED ACTUAL
Questions and CORRECT 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% - CORRECT ANSWER - B) 66%
A 25-gauge, 0.5-inch needle is BEST used for a(n) ________ injection.
A) intradermal
B) intramuscular
C) subcutaneous
D) intravenous - CORRECT ANSWER - 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) - CORRECT ANSWER - A) kVp
Which of the following is a cranial bone?
A) mandible
B) parietal
C) vomer
,D) maxillary - CORRECT ANSWER - 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 - CORRECT ANSWER - 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 - CORRECT ANSWER - 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 - CORRECT ANSWER - 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 - CORRECT ANSWER - 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 - CORRECT ANSWER - 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) - CORRECT ANSWER - 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 - CORRECT ANSWER - A) ionization.
The primary function of filtration is to reduce:
A) patient skin dose.
B) operator dose.
C) film noise.
D) scattered radiation. - CORRECT ANSWER - A) patient skin dose.
Questions and CORRECT 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% - CORRECT ANSWER - B) 66%
A 25-gauge, 0.5-inch needle is BEST used for a(n) ________ injection.
A) intradermal
B) intramuscular
C) subcutaneous
D) intravenous - CORRECT ANSWER - 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) - CORRECT ANSWER - A) kVp
Which of the following is a cranial bone?
A) mandible
B) parietal
C) vomer
,D) maxillary - CORRECT ANSWER - 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 - CORRECT ANSWER - 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 - CORRECT ANSWER - 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 - CORRECT ANSWER - 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 - CORRECT ANSWER - 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 - CORRECT ANSWER - 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) - CORRECT ANSWER - 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 - CORRECT ANSWER - A) ionization.
The primary function of filtration is to reduce:
A) patient skin dose.
B) operator dose.
C) film noise.
D) scattered radiation. - CORRECT ANSWER - A) patient skin dose.
