Exam (elaborations)
LMRT State Review QUESTIONS WITH CORRECT!! ANSWERS
- Course
- Institution
lmrt state review refers to the examination and licensing process for individuals seeking to practice as limited medical radiologic technologists
[Show more]
Content preview
LMRT State Review QUESTIONS WITHCORRECT!! ANSWERS
Which of the following statements are correct regarding the link between
radiation dose and genetic effects?
1. The link has been demonstrated in human studies.
2. The link has been demonstrated in animal studies.
3. increased risk to humans cannot be predicted with respect to an individual. -
correct answer 2 and 3 only
Which of the following changes in kilovoltage (KVP) will result in the greatest
reduction of patient dose, when milliamperage-seconds (mAs) is adjusted to
compensate for the dosage?
A.) Decrease kVp by 30%
B.) Decrease kVp by 15%
C.) Increase kVp by 15%
D.) Increase kVp by 30% - correct answer Increase kVp by 30%
Which of the following image receptor (IR) system speeds will result in the lowest
patient dose?
A.) slower speed IR system
B.) Faster speed IR system
C.) It does not matter; the IR system speed does not affect the patient dose. -
correct answer Faster speed IR system
What is the primary purpose of using gonad shields during radiography?
A.) Reduce the likelihood of genetic changes
B.) Reduce likelihood of somatic effects
C.) Protect patient modesty
D.) Demonstrate the location of the gonads in the image - correct answer Reduce
the likelihood of genetic changes
Which one of the following are types of gonad shields?
1. Aperture
2. Contact
3. Shadow
A.) 1 and 2 only
B.) 1 and 3 only
C.) 2 and 3 only
D.) 1, 2, and 3 - correct answer 2 and 3 only
When should gonad shielding be used?
A.) for all patients
B.) For all procedures
1
,LMRT State Review QUESTIONS WITH
CORRECT!! ANSWERS
C.) when the gonads are within 10 cm of the radiation field
D.) when the gonads are within 5 cm of the radiation field - correct 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:
A.) Patient condition
B.) Patient size
C.) Repeat exposure
D.) equipment malfunction - correct answer Repeat exposure
The limited operator can reduce repeat exposures by:
A.) Accepting marginal images
B.) Clearly instructing patients
C.) increasing the source-image receptor distance (SID)
D.) optimizing the kVp - correct answer Clearly instructing patients
How does x-ray beam restriction minimize patient exposure?
A.) it limits radiation fog
B.) It limits the radiation field to the area of interest
C.) It limits the effect of patient motion
D.) It limits repeat exposure - correct 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?
A.) Collimator
B.) Detent
C.) Filter
D.) Sheild - correct answer Collimator
How does filtration reduce patient exposure?
A.) Removes the shorter-wavelength photons
B.) Removes longer wavelength photons
C.) Reduces the size of the radiation field
D.) Reduces the time of exposure - correct answer Removes longer wavelength
photons
What is the National Council on Radiation Protection and Measurements (NCRP)
recommendation for the amount of total filtration?
A.) 0.5mm aluminum equivalent ( AL Equiv)
B.) 1.5mm AL Equiv
2
, LMRT State Review QUESTIONS WITH
CORRECT!! ANSWERS
C.) 2.5mm Al Equiv
D.) 3.5mm Al Equiv - correct answer 2.5mm Al Equiv
What are the three principal methods used to protect limited operators from
unnecessary radiation exposure?
A. Time, Distance, and Shielding
B.) Time, Distance, and Collimation
C.) Distance, Collimation, and Shielding
D.) Time, Collimation, and Filtration - correct answer Time, Distance, and
Shielding
Which of the following is not a type of personnel radiation shielding?
A.) Apron
B.) Glove
C.) Thyroid Shield
D.) Shadow - correct 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 the exposure to
assist the patient in maintaining the proper position . What is the source of the
greatest radiation hazard under this circumstance?
A.) Off-focus radiation
B.) Leakage Radiation
C.) Scattered Radiation from the patient
D.) Back scatter radiation from the IR - correct answer Scattered Radiation from
the patient
What is the term for radiation that escapes from the x-ray tube housing?
A.) Scatter radiation
B.) Off-focus radiation
C.) Primary Radiation
D.) Leakage Radiation - correct answer Leakage Radiation
Why are limited operators prohibited from activities that results in direct
exposure to the primary x-ray beam?
A.) They are considered occupationally exposed individuals
B.) These activities carry immediate health risk
C.) Their interaction with the beam will affect patient dose
D.) Their presence near the patient increases liability - correct answer They are
considered occupationally exposed individuals
Distance, as a method used to limit operator exposure, means that:
3
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 EXPERTIPS. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
81989 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now