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Quiz Bowl Round 4 Flashcards | StudBud
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Quiz Bowl Round 4
Quiz Bowl Round 4
20 terms
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StudBud Administration
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20 cards
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Practice quiz
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Questions
20
Answers
1
Geometric unsharpness within the radiographic image can be minimized by using the:
smallest focal spot
all of these
longest SID
shortest OID
2
Given an original technique of 80 kVp and 20 mAs, which would produce an image with double the IR exposure?
92 kVp and 15 mAs
80 kVp and 40 mAs
90 kCp and 40 mAs
92 kVp and 30 mAs
3
On a properly positioned pelvic xray, what should not be visible?
Illiac crest
Greater trochanter
Lesser trochanter
Pubic symphisis
4
When sterile fields are prepared, damp packages:
Are always considered contaminated
Are always considered sterile; the dampness is a remnant of the gassing
Should be unwrapped first and placed in the center of the sterile field
Are always considered sterile the dampness confirms they were cleaned
5
Graphs that show the relationship between radiation received and the organism's responses are called:
Radiation-threshold curves
Response curves
Dose-response curves
Exposure curves
6
What provides an approximate skin dose where the x-ray beam is entering the patient?
Effective dose
Air kerma
Sievert
Becquerel
7
The primary purpose of performing oblique projection of the ribs is:
to image the ribs above the diaphragm
to image the axillary portion of the ribs
to determine the extent of the patients pain tolerance
to image the ribs below the diaphragm
8
Which of the following bones has a coronal suture?
Occipital bone
Temporal bone
Frontal bone
Parietal bone
9
Radiography of a long bone for fracture requires:
Two images at 180 degree angles from each other
Two images at right angles to each other
AP, lateral, oblique
PA and lateral
10
Highly reactive ions that have unpaired electrons in the outer shell are called:
Radiolytic
Hydrogen peroxide
Free radicals
Electrified
11
Shock is indicated when the diastolic blood pressure is:
Greater than 100 mm Hg
Less than 50 mm Hg
Greater than 90 mm Hg
Less than 60 mm Hg
12
When a lateral projection of the knee is performed, the knee should be:
Flexed 20 to 30 degrees
Fully extended
Flexed to a 90-degree angle
Extended 20 to 30 degrees
13
The unit of radiation absorbed in air is the:
Bq
Sv
Gya
Gyt
14
Imaging of what pathologic condition would require radiography of the distal forearm?
Ankylosing spondylitis
Boxer fracture
Colles fracture
Talipes
15
For radiography of the fingers, the central ray enters:
Perpendicular to the proximal interphalangeal joint
Parallel to the distal interphalangeal joint
Parallel to the proximal interphalangeal joint
Perpendicular to the distal interphalangeal joint
16
This item is used to restore the heart to normal rhythm:
Sphygmomanometer
Crash cart
Defibrillator
Suction unit
17
Gross overexposure causing an image that cannot be adequately processed is called:
Saturation
Flat fielding
Equalization
Smoothing
18
Bit depth describes:
The available gray scale of an imaging system
Window level
Spatial resolution
Optimum exposure needed for an imaging system
19
A scintillator:
Converts visible light into electrons
Absorbs x-ray energy and emits part of that energy as visible light
Converts electrons into visible light
Absorbs x-ray energy and emits that energy as electrons
20
Radiation with a high LET:
Carries a low quality factor
Has low ionization
Equated with a low RBE
Is highly ionizing