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RADT 241 TEST REVIEW EXAM QUESTIONS AND ANSWERS
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  • Registered Drug And Alcohol Technician
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  • Registered Drug And Alcohol Technician

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 de...

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  • October 9, 2024
  • 5
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • radt 241 test review exam questions and answers
  • the maximum exposure received by the patient is at

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  • Registered Drug And Alcohol Technician
  • Registered Drug And Alcohol Technician

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RADT 241 TEST REVIEW EXAM
QUESTIONS AND 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

window level? - Answer-brightness

window width? - Answer-contrast

spatial resolution is controlled by? - Answer-pixel size

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