Exam (elaborations)
RADT 241 TEST REVIEW QUESTIONS AND ANSWERS
- Course
- Institution
RADT 241 TEST REVIEW QUESTIONS AND ANSWERS
[Show more]
Content preview
RADT 241 TEST REVIEW QUESTIONSAND ANSWERS
the maximum exposure received by the patient is at the - Answer -(ESE) entrance skin
exposure
the radiation intensity from a diagnostic x-ray unit will vary in a direct relationship with? -
Answer --mAs
-kvp^2
*inverse relationship w/ the square of the distance
which anatomical part will deliver the lowest (ESE)? - Answer --hip *lot of tissue
-pelvis
-l-spine
-elbow
answer: ELBOW *smallest technical factors
a radiographer can reduce pt dose by at least how much % in most examinations by
choosing correct exposure factors? - Answer -50%
to reduce pt exposure the ***** consistent with the image quality should be selected? -
Answer --highest mAs
-shortest distance
-highest kVp
answer: highest kVp
pt ESE decreases as SID increases? - Answer -TRUE
*distance -they have a inverse relationship
when the primary beam field size decreases what happens to pt exposure? - Answer -
decreases
the 3 types of gonad shields? - Answer -1. shape contact
2. flat contact
, 3. shadow contact
when using a radiographic grid will it decrease or increase pt exposure? - Answer -
increase *have to shoot more mAs when using grids for quality
entrance skin exposure (ESE) is considered what type of exposure? - Answer -MAXIMUM
why Is skull radiography PA projection preferred over AP? - Answer --less exposure to
eyes
when pt SID or SOD increases pt (ESE) does what? - Answer -decreases
*inversely proportional
when comparing (ESE) and actual dose to area of interest the actual dose is? - Answer -
lower than (ESE)
*you always want to overestimate w/ ESE
the recommended SID for routine radiography ? - Answer -44"-48"
what should be used in an effort to minimize pt dose? - Answer -longer SODS'S minimize
pt dose
how is (ESE) calculated ? - Answer -at the min SOD
what are the 2 classes of digital radiographic systems? - Answer -1. direct
2. indirect
computers operate using what type of language? - Answer -binary
each binary # is called a? - Answer -bit
an 8 bit word is called a? - Answer -byte
what are the 2 steps to analog digital conversion? - Answer -1. quantification
2. sampling
what posses a third dimension? - Answer -a voxel
a graphical analysis of signal values from min to max values in a data set is termed a ? -
Answer -histogram
the shape and distribution of values on a x-ray exposure histogram is specific to selected
anatomy; the exposure used for the exam? - Answer -T
in that histogram the data is analyzed to identify the? - Answer -values of interest
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 millyphilip. 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.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
72042 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now