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Rad135 Final Exam Review- Part 4
Test Description: This content covers several chapters from the text to help you prepare for the final exam in Rad 135.
Instructions: Answer all questions to get your test result.
1) Who must give permission before a radiographer enters a patient's room for a mobile examination?
A
patient
B
physician
C
nurse
D
power of attorney
2) Who's job is it to return all the items in the patient's room?
A
radiographer
B
patient
C
nurse
D
ER tech
3) What position should a patient be placed in for a mobile chest x-ray if air-fluid levels need to be demonstrated without distortion of the anatomy?
A
prone
B
semi-erect position
C
upright
D
supine
4) When performing a mobile examination, a minimum of how many lead aprons should a radiographer have?
A
one
B
four
C
two
D
none
5) What is the prime reason for repeated mobile examinations?
A
patient motion
B
improper grid alignment
C
rotation
D
failure to measure distance
6) What type of drive switch should the mobile unit have?
A
deadman
B
joystick
C
toggle
D
pressure
7) When a radiographer estimates soure-to-image receptor distance (SID), it must be within ____ percent of recommended SID to avoid creating an image with a substantial exposure difference?
A
5%
B
20%
C
10%
D
15%
8) What type of grid is preferred for mobile radiography?
A
low grid ratio, low frequency
B
high grid ratio, high frequency
C
low grid ratio, high frequency
D
high grid ratio, low frequency
9) Which of the following is employed to enhance the contrast of a radiographic image especially on large body parts?
A
grid
B
open collimation
C
off-focus radiation
D
post-processing shuttering
10) Which of the following could seriously injure patients and staff while operating a mobile unit?
A
radiation
B
careless driving
C
mounted television sets
D
medical devices
11) All of the following features are essential to a mobile radiographic unit except ____.
A
automatic exposure control with a single field
B
dead man exposure type switch
C
expandable 6 foot exposure cord
D
clear display of exposure factors
12) Batteries used in mobile radiographic machines ____.
A
should be replaced with new batteries daily
B
recharge using 220-240 volt AC power
C
provide power for mobility only
D
are rechargeable
13) During mobile radiography, the radiographer must achieve maximum distance primarily from the ____.
A
mobile unit
B
tube
C
image receptor
D
patient
14) For mobile radiography, radiographic grids should have a ____.
A
low ratio, high frequency
B
high ratio, high frequency
C
high ratio, low frequency
D
cross-hatch design
15) The most common diagnostic radiography anode target angle is ____ degrees.
A
10
B
12
C
25
D
5
16) The preferred method for demonstrating air fluid levels during mobile radiography is to make sure that the ____.
A
OID is minimized
B
patient is sitting fully erect
C
SID is 60 in
D
x-ray beam is parallel to the image receptor
17) During optimal mobile radiography of the chest, the recommended SID is ____ inches.
A
115 in
B
72 in
C
15 in
D
45 in
18) An increase in mAs effects x-ray quantity.
A
False
B
True
19) How does added filtration affect the emission spectrum?
A
reduced amplitude and shift to the left
B
reduced amplitude and shift to the right
C
increased amplitude and shift to right
D
increased amplitude and shift to the left
20) Which has the greatest mass density?
A
lung
B
fat
C
bone
D
water
*select an answer for all questions
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