ASRT EXAM1 110 QTUESTIONS AND CORRECT ANSWERS 2024-2025 LATEST ALREADY GRADED
A+
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% - 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 - 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) - answer-A) kVp
Which of the following is a cranial bone?
A) mandible
B) parietal
C) vomer
D) maxillary - 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 - 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 - 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 - 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 - 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 - 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) - 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 - answer-A) ionization.
The primary function of filtration is to reduce: A)
patient skin dose.
B) operator dose.
C) film noise.
D) scattered radiation. - answer-A) patient skin dose.
Primary radiation barriers must be AT LEAST ______ feet high.
A) 5
B) 6
C) 7
D) 8 - answer-C) 7
Irradiation of the embryo during the first week of development to equivalent doses exceeding 200 mSv
frequenatly results in: A) no effect.
A+
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% - 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 - 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) - answer-A) kVp
Which of the following is a cranial bone?
A) mandible
B) parietal
C) vomer
D) maxillary - 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 - 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 - 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 - 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 - 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 - 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) - 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 - answer-A) ionization.
The primary function of filtration is to reduce: A)
patient skin dose.
B) operator dose.
C) film noise.
D) scattered radiation. - answer-A) patient skin dose.
Primary radiation barriers must be AT LEAST ______ feet high.
A) 5
B) 6
C) 7
D) 8 - answer-C) 7
Irradiation of the embryo during the first week of development to equivalent doses exceeding 200 mSv
frequenatly results in: A) no effect.
