Wrong on Practice Tests

Question 1

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

Answer 1

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

Question 2

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

Answer 2

Electron traps

Question 3

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

Answer 3

Prodromal, latent, manifest, and recovery/death

Question 4

Which structure helps stabilize and support the small intestine?

Answer 4

Mesentery

Question 5

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

Answer 5

Aneurysms, umbilical hernias, and calcification of the aorta

Question 6

CR angle for modified Robert’s method

Answer 6

15° proximally (toward the wrist)

Question 7

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?

Answer 7

Rotate the wrist and hand 10° internally.

Question 8

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

Answer 8

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

Question 9

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?

Answer 9

Decrease rotation

Question 10

First compensatory spinal curvature to develop

Answer 10

Cervical

Question 11

CR angle for posterior oblique of C-Spine

Answer 11

15° cephlad

Question 12

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

Answer 12

10

Question 13

Sciatic type pain resulting from a slipped disk indicates:

Answer 13

A herniated nucleus pulposus

Question 14

Angulation for an AP axial L5-S1 is?

Answer 14

Cephlad

Question 15

LPO position of SI joints best demonstrate the right joint?

Answer 15

False

Question 16

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

Answer 16

False

Question 17

Radiographic appearance of erosion of bony rib margins indicates:

Answer 17

Osteomyelitis

Question 18

The congenital defect characterized by anterior protrusion of lower sternum:

Answer 18

Pectus carinatum

Question 19

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

Answer 19

Increase the extension of the skull

Question 20

Where is bile formed?

Answer 20

Liver

Question 21

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

Answer 21

Sthenic

Question 22

Which is the most effective cardinal principle of radiation protection?

Answer 22

Distance

Question 23

The ascending colon and upper rectum are intraperitoneal structures

Answer 23

False

Question 24

Which vein is NOT selected for venipuncture during and IVU?

Answer 24

Axillary

Question 25

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

Answer 25

False

Question 26

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

Answer 26

Ultrasound & Nuc Med

Question 27

Definition of Modulation Transfer Function (MTF)

Answer 27

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

Question 28

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

Answer 28

Edge Enhancement

Question 29

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

Answer 29

Active

Question 30

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

Answer 30

Active

Question 31

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

Answer 31

CMOS

Question 32

What turn semi-conductors into full electrical conductors?

Answer 32

Dopants

Question 33

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

Answer 33

HIS (Hospital Information System)

Question 34

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

Answer 34

Resolution

Question 35

Which component of the archive consists of physical storage?

Answer 35

Image Storage & Archive Server

Question 36

Errors in equipment performance are detected by poor:

Answer 36

Quality Outcomes

Question 37

How often should the luminescence of a monitor be checked?

Answer 37

Daily

Question 38

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

Answer 38

Alignment

Question 39

Best projection to look for an abdominal aortic aneurysm:

Answer 39

Dorsal Decubitus

Question 40

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

Answer 40

Dorsal Decubitus

Question 41

Radiolysis of positive water molecule make:

Answer 41

H+ and OH*

Question 42

Radiolysis of negative water molecule make:

Answer 42

OH- and H*

Question 43

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

Answer 43

H* and OH*

Question 44

As _____ transfer decreases, RBE decreases

Answer 44

Linear energy

Question 45

Brain tissue is _____ compared to bone marrow

Answer 45

More radioresistant

Question 46

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

Answer 46

Prophase

Question 47

Most sensitive phase of the cell cycle

Answer 47

Interphase

Question 48

Cross-Linking results in _____ structures

Answer 48

Spur-like

Question 49

SSD should be no less than _____ for mobile fluoroscopes

Answer 49

12"

Question 50

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

Answer 50

Due to the lumbosacral curve

Question 51

What is the angle for SI joints for a male?

Answer 51

30 degrees

Question 52

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

Answer 52

125 degrees

Question 53

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

Answer 53

70 degrees

Question 54

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

Answer 54

RPO

Question 55

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

Answer 55

Mobility

Question 56

What is demonstrated on the medial oblique knee?

Answer 56

Proximal tibiofibular joint space

Question 57

What is not a proper flexion for a lateral knee?

Answer 57

20-30 degree flexion

Question 58

What is indicative of an underrotated lateral knee?

Answer 58

Visualization of adductor tubercle

Question 59

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

Answer 59

Move the clavicles inferiorly from the apices

Question 60

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

Answer 60

AP lordotic

Question 61

Why would an oblique chest be performed?

Answer 61

To remove superimposed tissue

Question 62

What is the oblique angle to image the heart at?

Answer 62

60 degrees

Question 63

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

Answer 63

LAO

Question 64

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

Answer 64

Places the sternum over the right lung field

Question 65

Which x-ray shows a sunken chest the best?

Answer 65

Oblique sternum

Question 66

Hypersthenic patients require less obliquity for the sternum

Answer 66

True

Question 67

What projection best demonstrates a posterior displaced ankle fracture?

Answer 67

Lateromedial lateral

Question 68

Pes Cavus tube angle

Answer 68

15 degree angle

Question 69

Pes Planus tube angle

Answer 69

5 degree angle

Question 70

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

Answer 70

Put full weight on affected side

Question 71

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

Answer 71

5th

Question 72

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

Answer 72

45 degrees

Question 73

Where is a Zenker Diverticulum found?

Answer 73

Esophagus

Question 74

What is the power source in the United States

Answer 74

6o Hz AC

Question 75

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

Answer 75

Three-Phase

Question 76

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

Answer 76

kVp

Question 77

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

Answer 77

Infrared

Question 78

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

Answer 78

mA/s

Question 79

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

Answer 79

Decreases it