Rad135 Final Exam Review- Part 4 Question Preview (ID: 56143)
This Content Covers Several Chapters From The Text To Help You Prepare For The Final Exam In Rad 135.
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Who must give permission before a radiographer enters a patient's room for a mobile examination?
a) nurse
b) physician
c) patient
d) power of attorney
Who's job is it to return all the items in the patient's room?
a) patient
b) ER tech
c) radiographer
d) nurse
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) semi-erect position
b) supine
c) prone
d) upright
When performing a mobile examination, a minimum of how many lead aprons should a radiographer have?
a) none
b) one
c) two
d) four
What is the prime reason for repeated mobile examinations?
a) improper grid alignment
b) failure to measure distance
c) patient motion
d) rotation
What type of drive switch should the mobile unit have?
a) deadman
b) toggle
c) pressure
d) joystick
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) 10%
c) 15%
d) 20%
What type of grid is preferred for mobile radiography?
a) low grid ratio, low frequency
b) low grid ratio, high frequency
c) high grid ratio, low frequency
d) high grid ratio, high frequency
Which of the following is employed to enhance the contrast of a radiographic image especially on large body parts?
a) open collimation
b) grid
c) post-processing shuttering
d) off-focus radiation
Which of the following could seriously injure patients and staff while operating a mobile unit?
a) medical devices
b) radiation
c) mounted television sets
d) careless driving
All of the following features are essential to a mobile radiographic unit except ____.
a) expandable 6 foot exposure cord
b) automatic exposure control with a single field
c) dead man exposure type switch
d) clear display of exposure factors
Batteries used in mobile radiographic machines ____.
a) are rechargeable
b) provide power for mobility only
c) recharge using 220-240 volt AC power
d) should be replaced with new batteries daily
During mobile radiography, the radiographer must achieve maximum distance primarily from the ____.
a) mobile unit
b) patient
c) image receptor
d) tube
For mobile radiography, radiographic grids should have a ____.
a) high ratio, low frequency
b) low ratio, high frequency
c) cross-hatch design
d) high ratio, high frequency
The most common diagnostic radiography anode target angle is ____ degrees.
a) 5
b) 10
c) 12
d) 25
The preferred method for demonstrating air fluid levels during mobile radiography is to make sure that the ____.
a) SID is 60 in
b) x-ray beam is parallel to the image receptor
c) OID is minimized
d) patient is sitting fully erect
During optimal mobile radiography of the chest, the recommended SID is ____ inches.
a) 15 in
b) 45 in
c) 72 in
d) 115 in
An increase in mAs effects x-ray quantity.
a) True
b) False
c)
d)
How does added filtration affect the emission spectrum?
a) increased amplitude and shift to right
b) increased amplitude and shift to the left
c) reduced amplitude and shift to the left
d) reduced amplitude and shift to the right
Which has the greatest mass density?
a) bone
b) fat
c) water
d) lung
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