Limited Scope of Radiography Practice Exam Questions and Answers 100% Verified

what statements are correct regarding the link between radiation and genetic effects - Correct Answer The link has been demonstrated in animal studies . Increased risk to humans cannot be predicted with respect to an individual. The changes in kilovoltage (kVp) will result in the greatest reduction of patient dose, when milliampere-seconds (mAs) is adjusted to compensate for the change - Correct Answer Increase kVp by 30% The following image receptor (IR) system speeds will result in the lowest patient dose - Correct Answer Faster speed IR system The primary purpose of using gonad shields - Correct Answer reduce the likelihood of genetic effects Are gonad shields - Correct Answer Contact and shadow gonad shielding should be used - 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 - Correct Answer repeat exposures the limited operator can reduce repeat exposure - Correct Answer clearly instructing patients how does the x-ray beam restriction minimize patient 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 - Correct Answer collimator how does filtration reduce patient exposure - Correct Answer removes longer-wavelength photons The National Council on Radiation Protection and Measurements(NCRP) recommendation for the amount of total filtration - Correct Answer 2.5 mm Al equiv Three principal methods used to protect limited operators from unnecessary radiation exposure - Correct Answer time, distance, and shielding