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Practice Final
Welcome to your Practice Final
1.The central ray for the AP view of the foot is directed at the:
Head of the third metacarpal
Base of the third metacarpal
Head of the third metatarsal
Base of the third metatarsal
None
2.The pars of the Scotty dog are best seen on which view?
AP view
Lateral view
Oblique view
none of the above.
None
3. The left posterior view of the cervical spine will show optimally?
Right IVF's
Left IVF's
Right ribs
Left ribs
None
4.A large bone forming the back of the shoulder is called:
Scaphoid
Septum
Cuboid
Scapula
None
5.The anterior-posterior view of the lumbar spine requires:
14 x 17 cassette
Turning the feet outward
Directing the central ray 1" below the iliac crests
Rotating the patient 45 degrees
None
6. The AP-LC view should have the central ray directed at:
Bottom of the top teeth
Thyroid cartilage
At C7 VB
The eyes
None
7.The act of breathing is called:
inspiration
expiration
suspended breathing
respiration
None
8.The central ray is directed at which body part for the shoulder examination?
Acromion
Clavicle
Corocoid process
Humerus
None
9.The lateral view of the thoracic spine will show:
Arms above the patient's head
View taken at maximum expiration
No light poseterior to the spinous processes
Cassette 2 inches below the shoulders
None
10.The AP view of the lumbosacral junction requires:
Cephalic tube tilt
72 FFD
Caudad tube tilt
Central ray at thyroid cartilage
None
11.The central ray for the AP-OM is directed where?
The eyes
The bottom teeth
The bottom of the top teeth/angles of mouth
At the jaw
None
12. Exposure to the eyes is acceptable.
True
False
Not important in x-ray taking
Acceptable in digital machine use
None
13.The central ray for the AP view of the elbow is directed at:
Between the condyles of the humerus
At the ulna
At the radius
At the coracoid process
None
14. The oblique view of the lumbar spine requires:
No tube tilt
5 degrees cephalic tube tilt
10 degrees cephalad tube tilt
15 degrees caudal tube tilt
None
15. The PA view of the wrist requires:
CR to be directed between coronoid process & olecranon
CR to be directed at head of the 2nd. metacarpal
CR to be directed between tibia and fibula
CR to be directed between radial & ulnar styloid process
None
16.The lateral flexion view of the cervical spine requires:
Chin to be trust up and back
Chin to be tipped down as clinically able
Rotated to the side
Wiggled back and forth
None
17. The AP view of the knee requires 5 degree tube tilt in which direction:
Cephalically
Caudad
No tube tilt is required
Turn patient internally 5 degrees
None
18. Which is the most important positioning feature for the lateral view of the knee?
No tube tilt
5 degrees cephalic tube tilt
10 degrees cephalad tube tilt
15 degrees caudal tube tilt
None
19.The AP view of the ankle requires:
Internal rotation of the foot by 5 degrees
Toes to be brought up
8 x 10 cassette
All of the above
None
20.Which is the only view that does not require gonadal shielding?
AP pelvis
AP lumbar
AP hip
Lateral hip
None
21. The central ray for the frog-leg hip exam is directed at:
Inguinal crease
Umbilicus
Top of the iliac crests
Foot
None
22. The best practice for x-raying a digit is to make sure you include a comparative digit.
True
False
None
23. The hand x-ray requires the central to be directed at:
Anatomic snuff-box
Head of third metacarpal
Base of third metacarpal
Between radial styloid process & ulnar styloid process
None
24. The lateral view of the hip may be done:
With the use of a table
Standing
Standing on a box
Figure 4 "frog-leg" position
None
25. The positioning of the lateral ankle involves:
Directing the CR to the 3rd, metatarsal
Direct the CR between the lateral and medial malleoli
Tilt the tube 5 degrees cephalad and aim at the ankle joint
Aim the CR at base of the 2nd. MT.
None
26. Which of the following is the useful beam?
Secondary radiation
Scatter radiation
Leakage radiation
Remnant radiation
None
27. Which of the following is the North Carolina and NCRP recommended thickness for lead gloves?
0.25 mm
0.5 mm
1.0 mm
1.5 mm
None
28. Which of the following is a characteristic of x-rays?
They have low energy photons & a long wavelength
They penetrate only lead matter
They are physically identical to normal light energy
They will not affect photographic film very much as light does
None
29.When x-rays interact with matter, the exposure rate of radiation is decreased. This decrease in exposure rate is called:
Deflection
Scatter radiation
Primary radiation
Attenuation
None
30.Which of the following kind of radiation has the highest intensity or exposure rate?
Secondary radiation
Scatter radiation
Primary radiation
Remnant radiation
None
31. Which of the following takes into account the biologic effects?
Roentgen
Rad
Rem
Quality
None
32.By which of the following is the quality of x-ray photons controlled primarily?
Length of filament
Kilovoltage at peak
Milliamperage
Target
None
33. When making an exposure, you should do all of the following except:
Keep the distance as great as possible between you & the source of radiation
Stand in the primary beam
Keep the time of exposure as short as possible
Stand behind the protective barrier
None
34.In order to reduce the amount of scatter reaching the film, which of the following should you do?
Use higher mAs
Reduce the target-film distance
Increase the area being exposed to the primary beam
Reduce the area being exposed to the primary beam
None
35.Which of the following affects the quality of the x-ray beam?
Milliamperes
Exposure time
Filter
SID
None
36. Intensifying screens reduce the amount of radiation needed for an exposure by:
Converting x-ray energy to light
Converting light to x-rays
Reducing the % of higher energy photons
Reducing the % of lower energy photons
None
37. Which of the following best describes the purpose of a monitoring device?
To make sure that occupational exposure does not exceed MPD
To keep occupational MPD as low as possible
To keep occupational MPD as high as reasonably achievable
To keep track of the times spent making exposures
None
38. Filtration of the x-ray beam removes soft radiation & thereby decreases the amount of radiation absorbed by:
Beam limiting devices
Intensifying screens
Cathode
Filter
None
39. Which of the following field sizes produces the least amount of scatter radiation?
14 x 17
10 x 12
8 x10
none of the above.
None
40.Which of the following is used to adjust the kVp in an x-ray machine?
rectifier
maS control
autotransformer
grid
None
41. Which of the following is used to change AC to DC?
Autotransformer
Rectifier
Step-up transformer
Step-down transformer
None
42. Which statement is correct regarding the anode?
Source of electrons.
Composed of a tungsten target
Is responsible for the space charge effect
Creates photoelectric effect
None
43. Which of the following is the primary factor that controls the number of electrons available for the production of x-rays in the radiographic tube?
Size of focal spot
Temperature of the filament
Kilovoltage used
Line voltage
None
44.The radiographic film should be detected so that its color sensitivity characteristics match the:
Phosphor of the intensifying screens
Processing chemical
Type of x-ray machine used
Focal spot size
None
45. If a radiograph has a sharp image & its edge is well-defined, this radiograpgh has:
Density
Contrast
Recorded detail
Magnification
None
46.Which of the following is the MAIN influence on the intensity of radiation?
Size of film
Size of focal spot
Object film distance
SID
None
47.Which of the following does influence the amount of radiation emitted by the body of the patient?
Thickness of the body part being radiographed
Speed of screen
Speed of film
Processing time
None
48.Which of the following combinations of exposure factors would reduce the patient’s exposure?
mAs – 40/kVp - 120
mAs- 100/kVp - 100
mAs – 200/kVp - 50
mAs 300/kVp - 30
None
49.Which is a characteristic of a DR –digital x-ray system.
Allows decreased through-put times.
Allow increased throughput times
Is less expensive than a CR system
Increases the exposure to the patient
None
50.Which of the following will affect the amount of radiation exposure to the patient?
Type of automatic processor
Belly button ring artifact
Type of caliper
A high screen speed
None
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