Limited scope of radiography practice Exam Questions With Verified Answers.
5 views 0 purchase
Course
Limited scope of radiography
Institution
Limited Scope Of Radiography
Limited scope of radiography practice Exam
Questions With Verified Answers.
What statements are correct regarding the link between radiation and genetic effects -
answerThe link has been demonstrated in animal studies .
Increased risk to humans cannot be predicted with respect to an individual....
Limited scope of radiography practice Exam
Questions With Verified Answers.
What statements are correct regarding the link between radiation and genetic effects -
answer✔The link has been demonstrated in animal studies .
Increased risk to humans cannot be predicted with respect to an individual.
The changes in kilovoltage (kVp) will result in the greatest reduction of patient dose, when
milliampere-seconds (mAs) is adjusted to compensate for the change - answer✔Increase kVp by
30%
The following image receptor (IR) system speeds will result in the lowest patient dose -
answer✔Faster speed IR system
The primary purpose of using gonad shields - answer✔reduce the likelihood of genetic effects
Are gonad shields - answer✔Contact and shadow
gonad shielding should be used - answer✔when the gonads are within 5 cm of the radiation field
the greatest cause of unnecessary radiation to patients that can be controlled by the limited
operator is - answer✔repeat exposures
the limited operator can reduce repeat exposure - answer✔clearly instructing patients
how does the x-ray beam restriction minimize patient exposure - answer✔it limits the radiation
field to the area of interest
what is the device that allows the limited operator to vary the size of the radiation field -
answer✔collimator
how does filtration reduce patient exposure - answer✔removes longer-wavelength photons
The National Council on Radiation Protection and Measurements(NCRP) recommendation for
the amount of total filtration - answer✔2.5 mm Al equiv
Three principal methods used to protect limited operators from unnecessary radiation exposure -
answer✔time, distance, and shielding
The following is not a type of personal radiation shielding - answer✔Shadow
personnel shielding must be worn on the rare occasion during which the limited operator may
need to remain in the radiographic room during an exposure to assist the patient in maintaining
the proper position. What is the source of the greatest radiation hazard under this circumstance.?
- answer✔scattered radiation from the patient
the term for radiation the escapes from the x-ray tube housing - answer✔leakage radiation
why are limited operators prohibited from activities that result in direct exposure to the primary
x-ray beam - answer✔they are considered occupationally exposed individuals
distance, as a method used to limit operator exposure, means that - answer✔the operator should
maximize the distance from the source during an exposure
shielding worn for personnel protection is designed to attenuate what source of exposure -
answer✔scatter radiation
the acronym for a common type of personnel dosimeter - answer✔TLD
What is the recommended placement for personnel dosimeter on the body of the limited operator
- answer✔the badge should be worn in the region of the collar on the anterior surface of the body
and outside the lead apron, if worn
The NCRP recommended annual effective dose limit for occupational exposure - answer✔5.0
rem (0.05 Sv)
The NCRP recommended monthly effective (or equivalent) dose limit to the fetus for a pregnant
worker - answer✔0.05 rem (0.0005 Sv)
Radiation monitoring of personnel is required when what percentage of the annual occupational
effective dose limit is likely to be received - answer✔10%
The conventional (British system) radiation unit to express radiation intensity in the air -
answer✔Roentgen
The conventional (British system) unit commonly used to report occupational dose to radiation
workers in the United States is the - answer✔rem
What is the conventional (British system) radiation unit of absorbed dose - answer✔Rad
According to the Bergonie-Tribondeau law, the following types of cells are most radiosensitive -
answer✔embryonic tissue cells
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Brainbarter. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.49. You're not tied to anything after your purchase.
