RTBC SAFETY EXAM | 100 QUESTIONS |
WITH ALL PASSED ANSWERS!!
During compton interactions, the incident x-ray photon interacts with what portion of an atom? Answer - outer shell electron
Photons produced outside of the actual focal spot are known as: Answer - off-
focus radiation Per the NCRP, personnel protective lead aprons used during fluoroscopy should
be at least: Answer - 0.50 millimeters of lead equivalent
Radiation dose reduction that is a result of using protective shielding is based on what 2 things? Answer - Material of the shield Thickness of the shield Which radiation quantity units are supplied for fluoroscopic exams? Answer - Air kerma
The risk of cancer is estimated by calculating the: Answer - effective dose
The measurement of the rate at which electrons flow is known as: Answer -
Amperage A patient in the ER requires a mobile chest x ray. What effort would BEST reduce radiation to the technologist? Answer - Standing 6 feet away from the x-ray tube during the exposure 1 / 2
During a fluoroscopic procedure, what effort would BEST reduce radiation exposure to the technologist? Answer - Minimizing the time spent in the procedure What international system of units (SI) is used to express exposure? Answer - Coulombs/Kilogram Which two are included in the total filtration of the x-ray beam? Answer - Added filtration Inherent filtration
The risk of cancer is estimated by calculating the: Answer - effective dose
Which two are controlled by kVp? Answer - Beam quality Electric potential What is the purpose of primary beam restriction? Answer - keep the amount of tissue irradiation to a minimum improve image quality reduce patient exposure reduce scatter production What is a type of ionizing radiation? Answer - X-rays
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