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Rad106 final review

QuestionAnswer
What organization continuously reviews and recommends radiation dose limits? NCRP
We practice ALARA because we accept which type of radiation dose-response relationship for stochastic effects like cancer and leukemia? Linear, nonthreshold (LNT)
What are the three cardinal principles of radiation protection? Time, distance, and shielding
During radiography, exposure time is minimized to reduce motion blur. During fluoroscopy, why is exposure time kept to a minimum? To reduce both patient radiation dose and personnel radiation exposure
Which type of effects are cancer, leukemia, and genetic mutations classified as, according to the health physics text? Stochastic effects
X-ray beam energy is improved by ____________. increasing filtration
The HVL is lowered by a decrease in ________. kVp
X-ray intensity is proportional to ____. kVp2
Added filtration will ______ beam energy and ______ HVL. increase; increase
A compensating filter is used to create ________ exposure with a body part of _________ thickness uniform; nonuniform
X-ray intensity is directly proportional to _____. mAs
Increasing kVp increases the _________ of an x-ray beam. energy
The main purpose of added filtration is to reduce ____________. patient dose
The number of x-rays in the useful beam defines x-ray ________. intensity
A 10% increase in kVp has ________ effect on x-ray intensity than/as a 10% increase in mAs. much greater
Beam energy is affected by ______________. kVp and filtration
A low-quality beam would also have low _____. penetrability
An x-ray beam that could pass through dense tissue would have high _____. penetrability and quality
If filter thickness is ________, then x-ray intensity is ________. increased; decreased
Created by: dani.vouga04
 

 



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