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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
nurse
B
radiographer
C
patient
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
upright
B
prone
C
supine
D
semi-erect position
4) When performing a mobile examination, a minimum of how many lead aprons should a radiographer have?
A
four
B
one
C
none
D
two
5) What is the prime reason for repeated mobile examinations?
A
failure to measure distance
B
improper grid alignment
C
patient motion
D
rotation
6) What type of drive switch should the mobile unit have?
A
pressure
B
deadman
C
joystick
D
toggle
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
high grid ratio, high frequency
B
high grid ratio, low frequency
C
low grid ratio, low frequency
D
low grid ratio, high frequency
9) Which of the following is employed to enhance the contrast of a radiographic image especially on large body parts?
A
off-focus radiation
B
grid
C
open collimation
D
post-processing shuttering
10) Which of the following could seriously injure patients and staff while operating a mobile unit?
A
medical devices
B
careless driving
C
radiation
D
mounted television sets
11) All of the following features are essential to a mobile radiographic unit except ____.
A
dead man exposure type switch
B
clear display of exposure factors
C
automatic exposure control with a single field
D
expandable 6 foot exposure cord
12) Batteries used in mobile radiographic machines ____.
A
are rechargeable
B
recharge using 220-240 volt AC power
C
should be replaced with new batteries daily
D
provide power for mobility only
13) During mobile radiography, the radiographer must achieve maximum distance primarily from the ____.
A
mobile unit
B
image receptor
C
tube
D
patient
14) For mobile radiography, radiographic grids should have a ____.
A
high ratio, high frequency
B
cross-hatch design
C
high ratio, low frequency
D
low ratio, high frequency
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
SID is 60 in
C
x-ray beam is parallel to the image receptor
D
patient is sitting fully erect
17) During optimal mobile radiography of the chest, the recommended SID is ____ inches.
A
115 in
B
45 in
C
72 in
D
15 in
18) An increase in mAs effects x-ray quantity.
A
True
B
False
19) How does added filtration affect the emission spectrum?
A
reduced amplitude and shift to the left
B
increased amplitude and shift to the left
C
increased amplitude and shift to right
D
reduced amplitude and shift to the right
20) Which has the greatest mass density?
A
water
B
fat
C
lung
D
bone
*select an answer for all questions
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