ASRT EXAM 1 QUESTIONS WITH 100

ASRT EXAM 1 QUESTIONS WITH 100%

VERIFIED CORRECT ANSWERS

2024/2025

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%

• 88% - Correct Answer B) 66%

A 25-gauge, 0.5-inch needle is BEST used for a(n) ________ injection.

• intradermal
• intramuscular
• subcutaneous
• 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?

• kVp
• object-to-image distance (OID)
• half-value layer (HVL)
• detective quantum efficiency (DQE) - Correct Answer A) kVp

Which of the following is a cranial bone?

• mandible
• parietal
• vomer
• maxillary - Correct Answer B) parietal 1 / 3

Select the item below that is NOT required as part of a standardized technique chart.

• source-to-image distance (SID)
• object-to-image distance (OID)
• mA
• 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.

• coronal
• interpupillary
• occlusal
• mentomeatal - Correct Answer C) occlusal

Which of the following radiographic evaluation criterion demonstrates proper inspiration on a PA projection of the chest?

• sternal ends of the clavicles equidistant from the vertebral column
• trachea visible in the midline of the body
• scapulae projected outside of lung field
• 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:

• specify instructions or locations.
• convey empathy.
• measure a body part before choosing exposure factors.
• 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

________.

• large focal spot; increase OID
• large focal spot; optimize spatial resolution 2 / 3

• small focal spot; increase OID
• 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.

• decreasing the kVp
• increasing the focal spot size
• increasing the part thickness
• 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:

• ionization.
• trephination.
• excitation.
• polymerization - Correct Answer A) ionization.

The primary function of filtration is to reduce:

• patient skin dose.
• operator dose.
• film noise.
• scattered radiation. - Correct Answer A) patient skin dose.

Primary radiation barriers must be AT LEAST ______ feet high.

• 5
• 6
• 7
• 8 - Correct Answer C) 7

Irradiation of the embryo during the first week of development to equivalent doses exceeding 200 mSv

frequenatly results in:

• no effect.
• / 3