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Radiology R1 Test 3 Flashcards | StudBud
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Radiology R1 Test 3
Radiology R1 Test 3
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Film and screen, contrast media
Flashcards
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Questions
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Answers
1
The following is TRUE regarding iodinated contrast
Intraosseous route is an alternative
All is true
Hyperthyroidism is a risk factor for CM reaction
Adverse reaction can occure in routes other than iv
2
An elderly patient brought for CT head, suddenly arrested, what's the first action should be taken by you
Call for help
Start CPR
Insert an iv line and start fluid
Intial assessment of airway, breathing and circulation
3
The thickness of an IS has a significant effect on the following, EXCEPT
The image contrast
The patient exposure
The receptor sensitivity
The image blurring
4
The following is NOT considered as risk element in radiology department
Acute kidney injury
Sever anaphylactoid reaction
ALARA
Delay communicating a critical result
5
Which of the following is NOT considered as safety metric in radiology
Infection control
Correct patient identification
Timely reporting of critical test
Film error control
6
In AXR, changing KV from 80 kV to 90 kV and the mAS is adjusted to give the same film densiy
The x-ray tube heating will decrease
The exposure to the patient will increase.
The contrast will increase.
The quantum noise will decrease
7
Which of the following is NOT true regarding DICOM
Defines both a file format and a networking protocol
Includes images and other patient's data
It's a worldwide standard
Cybersecurity is not warranted
8
Which of the following isotopes is NOT commonly used for imaging blood perfusion to the heart?
I-131
Tc-99m
Tl-201
Rb-82
9
The incidence of immediate mild reactions to nonionic contrast media is
0.3%
1.3%
3%
3-10%
10
Which of the following is NOT a predisposing risk factors for immediate allergic-type reactions to iodinated CM
Asthma
Hypertension
Age less than 1 year
Sickle cell anemia
11
A patient for lower limb angiography with previous CM reaction. Which of the following measures are considered.
Consider CO2 as iv contrast
All of the above
Consider prednisone as premedication
Consider alternative imaging test
12
What kind of radioactivity is emitted by I-131?
Beta and Gamma
Alpha and Gamma
X ray
Alpha
13
PACS is usually an integration of:
Image acquisition device
All of the above
Transmission network
Image storage device/server
14
Which if the following is NOT considered a potential sources of blurring within a radiograph receptor
Space between the film and intensifying screen
Incorrect spectral matching
Spreading of light within the screen.
Light cross-over within the film
15
Replacing medium speed IS with a high speed IS (same phosphor material) for patient dose reduction, will give
Less visibility of anatomical details
Less contrast
Less exposure altitude
Less quantum noise
16
Which of the following is an ionic contrast medium ?
Iopromide
Ioxaglate
Iopamidol
Iohexol
17
How is the commonly used isotope Tc-99m produced?
Cyclotrone
Linear accelerator
Radioisotpe generator
Gamma camera
18
Which of the following is considered as MINOR limitation of PACS
Capital cost
Technical failure
Suboptimal image quality
Risk of data loss
19
In sever CM reaction in an adult patient, which dose and route of epinephrine is recommended
IV 1:1000 0.5 mL
IV 1:1000 0.05 mL
IM 1:1000 0.5 mL
IM 1:1000 5.0 mL
20
The quantum noise in radiography can generally be decreased without increasing patient exposure by using:
IS with a higher conversion efficiency.
All of the above
IS with a higher absorption efficiency.
Thicker IS.
