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ARRT Board Prep > Wrong on Practice Tests > Flashcards

Wrong on Practice Tests Flashcards

1
Q

Which occurs during x-ray tube preparation/”boost”?

A

Anode comes to rotational speed and the preselected milliamperage increases in the cathode filament

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2
Q

The latent image in computed tomography is actually _____ within the barium fluorohalide material.

A

Electron traps

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3
Q

Acute radiation syndrome manifests in four major stages. In what order do these stages occur?

A

Prodromal, latent, manifest, and recovery/death

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4
Q

Which structure helps stabilize and support the small intestine?

A

Mesentery

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5
Q

Which clinical indication would suggest the need for a dorsal decubitus abdomen?

A

Aneurysms, umbilical hernias, and calcification of the aorta

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6
Q

CR angle for modified Robert’s method

A

15° proximally (toward the wrist)

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7
Q

A radiograph of a tangential, inferior-superior projection of the carpal canal reveals that the hamate is superimposed over the pisiform. How can this be corrected?

A

Rotate the wrist and hand 10° internally.

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8
Q

Patient has a possibly fractured coronoid process. He cannot fully extend his elbow, what views should be done?

A

Coyle method with 80° flexion, CR angled 45° away from the shoulder.

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9
Q

If the axillary border of the scapula is more lateral than the vertebral border on a Scap Y, what needs to be done to fix it?

A

Decrease rotation

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10
Q

First compensatory spinal curvature to develop

A

Cervical

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11
Q

CR angle for posterior oblique of C-Spine

A

15° cephlad

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12
Q

Thyroid dose of a posterior cervical oblique is how much greater than an anterior oblique?

A

10

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13
Q

Sciatic type pain resulting from a slipped disk indicates:

A

A herniated nucleus pulposus

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14
Q

Angulation for an AP axial L5-S1 is?

A

Cephlad

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15
Q

LPO position of SI joints best demonstrate the right joint?

A

False

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16
Q

LAO position of the sternum provides the best frontal image of the sternum?

A

False

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17
Q

Radiographic appearance of erosion of bony rib margins indicates:

A

Osteomyelitis

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18
Q

The congenital defect characterized by anterior protrusion of lower sternum:

A

Pectus carinatum

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19
Q

How can the image be fixed if the mandibular condyles are projected into the petrous pyramids?

A

Increase the extension of the skull

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20
Q

Where is bile formed?

A

Liver

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21
Q

A stomach with a duodenal bulb at the level of L1-L2 would be found in a ____ patient.

A

Sthenic

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22
Q

Which is the most effective cardinal principle of radiation protection?

A

Distance

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23
Q

The ascending colon and upper rectum are intraperitoneal structures

A

False

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24
Q

Which vein is NOT selected for venipuncture during and IVU?

A

Axillary

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25
Q

All temperatures should be identical regardless of where the temperature is measured

A

False

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26
Q

What two modalities could easily be converted to digital imaging properties?

A

Ultrasound & Nuc Med

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27
Q

Definition of Modulation Transfer Function (MTF)

A

The sum of the components in a recording system cannot be greater than the system as a whole

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28
Q

Amplification of the frequencies of the areas of interest is known as:

A

Edge Enhancement

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29
Q

The layer of the imaging plate that traps electrons during the exposure:

A

Active

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30
Q

When the imaging plate is irradiated, stimulated electrons enter what layer?

A

Active

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31
Q

A detector in which each pixel has its own amplifier is known as:

A

CMOS

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32
Q

What turn semi-conductors into full electrical conductors?

A

Dopants

33
Q

The system that contains patient info, billing records, and inpatient orders is?

A

HIS (Hospital Information System)

34
Q

The number of pixels contained on a display is known as:

A

Resolution

35
Q

Which component of the archive consists of physical storage?

A

Image Storage & Archive Server

36
Q

Errors in equipment performance are detected by poor:

A

Quality Outcomes

37
Q

How often should the luminescence of a monitor be checked?

A

Daily

38
Q

Positioning errors may be the cause of incorrect processing due to mistakes in:

A

Alignment

39
Q

Best projection to look for an abdominal aortic aneurysm:

A

Dorsal Decubitus

40
Q

Which projection is best for demonstrating the prevertebral region of the abdomen?

A

Dorsal Decubitus

41
Q

Radiolysis of positive water molecule make:

A

H+ and OH*

42
Q

Radiolysis of negative water molecule make:

A

OH- and H*

43
Q

What are the free radicals that have the ability to break chemical bonds and result in biological damage?

A

H* and OH*

44
Q

As _____ transfer decreases, RBE decreases

A

Linear energy

45
Q

Brain tissue is _____ compared to bone marrow

A

More radioresistant

46
Q

Stage of mitosis in which the nuclear membrane disappears/visibility of the nucleolus is absent

A

Prophase

47
Q

Most sensitive phase of the cell cycle

A

Interphase

48
Q

Cross-Linking results in _____ structures

A

Spur-like

49
Q

SSD should be no less than _____ for mobile fluoroscopes

A

12”

50
Q

Why is the angle 35 degrees for SI joints for a woman?

A

Due to the lumbosacral curve

51
Q

What is the angle for SI joints for a male?

A

30 degrees

52
Q

What is the angle of the neck to the shaft of a femur?

A

125 degrees

53
Q

What is the degree of obliquity to demonstrate zygopophyseal joints in the T-Spine?

A

70 degrees

54
Q

To display the zygopophyseal joints of the right side in the lumbar spine, what oblique should be performed?

A

RPO

55
Q

What are flexion/extension laterals of the spine used to evaluate?

A

Mobility

56
Q

What is demonstrated on the medial oblique knee?

A

Proximal tibiofibular joint space

57
Q

What is not a proper flexion for a lateral knee?

A

20-30 degree flexion

58
Q

What is indicative of an underrotated lateral knee?

A

Visualization of adductor tubercle

59
Q

What is the purpose of instructing a patient to drop the shoulders during chest radiography?

A

Move the clavicles inferiorly from the apices

60
Q

What is the best way to image a tumor in the apices of the lungs?

A

AP lordotic

61
Q

Why would an oblique chest be performed?

A

To remove superimposed tissue

62
Q

What is the oblique angle to image the heart at?

A

60 degrees

63
Q

What oblique should a patient be in for right anterior rib pain?

A

LAO

64
Q

Why is a 15-20 degree RAO preferred for a sternum x-ray?

A

Places the sternum over the right lung field

65
Q

Which x-ray shows a sunken chest the best?

A

Oblique sternum

66
Q

Hypersthenic patients require less obliquity for the sternum

A

True

67
Q

What projection best demonstrates a posterior displaced ankle fracture?

A

Lateromedial lateral

68
Q

Pes Cavus tube angle

A

15 degree angle

69
Q

Pes Planus tube angle

A

5 degree angle

70
Q

For weight bearing unilateral what is important to tell the patient?

A

Put full weight on affected side

71
Q

Which metatarsal should be captured in an ankle x-ray?

A

5th

72
Q

What degree of angle will show the the distal tibiofibular space on an internal oblique ankle x-ray?

A

45 degrees

73
Q

Where is a Zenker Diverticulum found?

A

Esophagus

74
Q

What is the power source in the United States

A

6o Hz AC

75
Q

General x-ray, fluoroscopy, and angiography all use what type phase of x-ray systems?

A

Three-Phase

76
Q

What is the force that accelerates electrons for x-radiation?

A

kVp

77
Q

What type of radiation makes up 99% of kinetic energy of projectile electrons?

A

Infrared

78
Q

A decrease in amplitude is a result of a decrease in what x-ray factor?

A

mA/s

79
Q

Added filtration does what to the intensity of the x-ray produced?

A

Decreases it

ARRT Board Prep (1 decks)

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