ARRT EXAM REVIEW questions with correct answers

According to the National Council on Radiation Protection and Measurements (NCRP), the gestational dose-equivalent limit for embryo/fetus of a pregnant radiographer is CORRECT ANSWER-0.5 mSv The annual occupational whole-body dose-equivalent limit for students under the age of 18 years is CORRECT ANSWER-1 mSv (100 mrem or 0.1 rem) The amount of time that x-rays are being produced and directed toward a particular wall is referred to as the CORRECT ANSWER-use factor number of x-ray exposures made per week CORRECT ANSWER-workload Patient dose increases as fluoroscopic CORRECT ANSWER-FOV decreases The interaction between x-ray photons and tissue that is responsible for radiographic contrast but that also contributes significantly to patient dose is CORRECT ANSWER-the photoelectric effect Pair production occurs only at very high energy levels, at least CORRECT ANSWER-1.02 MeV Which of the following voltage ripples is (are) produced by single-phase equipment CORRECT ANSWER-100% voltage ripple Early symptoms of acute radiation syndrome include CORRECT ANSWER-leukopenia, nausea and vomiting