RADT 241 TEST REVIEW UPDATED ACTUAL QUESTIONS and CORRECT Answers

RADT 241 TEST REVIEW UPDATED
ACTUAL QUESTIONS and CORRECT
Answers
the maximum exposure received by the patient is at the - CORRECT ANSWER - (ESE)
entrance skin exposure


the radiation intensity from a diagnostic x-ray unit will vary in a direct relationship with? -
CORRECT ANSWER - -mAs
-kvp^2


*inverse relationship w/ the square of the distance


which anatomical part will deliver the lowest (ESE)? - CORRECT 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? - CORRECT ANSWER - 50%


to reduce pt exposure the ***** consistent with the image quality should be selected? -
CORRECT ANSWER - -highest mAs
-shortest distance
-highest kVp

, answer: highest kVp


pt ESE decreases as SID increases? - CORRECT ANSWER - TRUE
*distance -they have a inverse relationship


when the primary beam field size decreases what happens to pt exposure? - CORRECT
ANSWER - decreases



the 3 types of gonad shields? - CORRECT ANSWER - 1. shape contact
2. flat contact
3. shadow contact


when using a radiographic grid will it decrease or increase pt exposure? - CORRECT
ANSWER - increase *have to shoot more mAs when using grids for quality


entrance skin exposure (ESE) is considered what type of exposure? - CORRECT
ANSWER - MAXIMUM



why Is skull radiography PA projection preferred over AP? - CORRECT ANSWER - -less
exposure to eyes


when pt SID or SOD increases pt (ESE) does what? - CORRECT ANSWER - decreases
*inversely proportional


when comparing (ESE) and actual dose to area of interest the actual dose is? - CORRECT
ANSWER - lower than (ESE)
*you always want to overestimate w/ ESE


the recommended SID for routine radiography ? - CORRECT ANSWER - 44"-48"