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Developmental ARRT assessment Exam
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Developmental ARRT assessment Exam
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Developmental ARRT assessment Exam_____ syndrome is not a form of acute radiation syndrome. - ANS-carcinogenic
"The sum of the components in a recording system cannot be greater than the system
as a whole" is a definition of: - ANS-modulation transfer function (MTF).
"The sum of the components in a recording system cannot be greater than the system
as a whole" is a definition of: - ANS-modulation transfer function (MTF).
A device for removing long wavelength radiation from the primary x-ray beam is a: -
ANS-filter
A device that acts like a camera in an indirect conversion detector is known as a: -
ANS-CCD
A given dose of radiation generally has the greatest potential for damage in tissues that
have: - ANS-more rapidly dividing cells
A grid absorbs - ANS-scatter radiation
A histogram displays the useful signal by locating: - ANS-maximum and minimum
signal.
A patient who is terribly thirsty, urinates copious amounts frequently, and has
fruity-smelling breath (ketones excreted via the respiratory tract) is showing indications
of: - ANS-diabetic coma
A photon is a minute quantity of: - ANS-electromagnetic energy
A popular feature on x-ray generators that reduces repeat exposures caused by
inaccurate exposure technique selection by technologists is: - ANS-AEC
A radiograph of a lateral projection of the cranium reveals that the orbital plates are not
superimposed, one is slightly superior to the other. Which of the following positioning
errors led to this radiographic outcome? - ANS-tilt
A radiograph of a PA axial projection (Caldwell method) of the cranium reveals that the
petrous ridges are located at the level of the lower one-third of the orbits. The
,technologist performed this projection with the CR angled 15 degrees caudal to the
OML. How must positioning be altered if a repeat exposure is performed? - ANS-None
of the above; positioning was correct.
A radiograph of an AP axial L5-S1 projection reveals that the joint space is not open.
The following factors were used on this female patient: 80 kV, 40-inch (102 cm) SID,
grid, 35-degree caudad angle, and CR centered to the ASIS. Which of the following
factors needs to be modified to produce a more diagnostic image? - ANS-Change the
direction of the CR angulation.
A radiograph of an AP axial projection of the cranium reveals that the dorsum sellae is
projected below the foramen magnum but the anterior arch of C1 is visible within the
foramen. Which of the following positioning errors led to this radiographic outcome? -
ANS-Excessive CR angulation
A radiographer innocently commits an error as the result of following the orders of his or
her employer, a physician. The employer may be held responsible according to the: -
ANS-Doctrine of respondeat superior
A series of warm-up exposures is made for the purpose of: - ANS-preventing damage to
the anode from sudden heating.
A steeper target angle provides: - ANS-smaller effective focal spot
A system's ability to respond to varying levels of exposure, resulting in more detail, is
referred to as: - ANS-dynamic range.
A system's ability to respond to varying levels of exposure, resulting in more detail, is
referred to as: - ANS-dynamic range.
A well-inspired average adult chest PA projection will have a minimum of ____ posterior
ribs seen above the diaphragm. - ANS-10
A woman who is 3 months' pregnant has been in a motor vehicle accident. The
emergency department physician suspects there is injury to her cervical spine and thus
feels justified in ordering an x-ray examination to aid in determining the extent of the
patient's injury. Because the patient is pregnant, the radiographer should
1. select the lowest exposure factors that will produce a diagnostically useful
radiograph.
, 2. adequately and precisely collimate the radiographic beam to include only the
anatomic area of interest.
3. shield the patient's lower abdomen and pelvic region with a suitable protective
contact shield - ANS-1 2 and 3
A/an _____ is an undesirable reaction that accompanies the principal response for
which the drug was taken. - ANS-adverse drug reaction
All of the following are true of CR technology EXCEPT: - ANS-here is no difference in
image resolution among the three image plate (cassette) sizes
All radiographs must be identified with which of the following?
1) radiographer's name
2) patient's name or ID number
3) right or left marker - ANS-2 and 3
An "electron cloud" surrounding a hot cathode is referred to as a: - ANS-space charge
An effective method to overcome superimposition of patient anatomy on a radiograph is
to
1. increase the SID.
2. angle the x-ray tube.
3. decrease the SOD.
4. rotate the patient into an oblique position.5. angle the image receptor. - ANS-2 and 4
An x-ray exposure is made using the following factors: 400 mA, .02 sec, 80 kVp, 40
inches SID and the large focal spot. In this case, the value of the mAs is: - ANS-8 mas
As radiation passes through the patient, it undergoes - ANS--attenuation.
-scatter and secondary interactions.
-absorption.
As you process a radiographic image of the abdomen of a small child, you notice a
small ringlike object on the image. It appears this object is in the patient's stomach,
which is consistent with the examination history. The ring shows on the x-ray image
because of its metallic density. This is the result of: - ANS-attenuation of the x-ray beam
by the metallic density of the ring
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