HESI Radiology Questions & Answers
HESI Radiology Which unit is a standard measurement of amount of radiation absorbed by a tissue? - Answer-Gray Which suggestion is helpful when working with a patient that has hypersensitive gag reflex? - Answer-Instruct the patient to hold their leg in the air Which method is used to protect the operator by measuring radiation in dental office? - Answer-Ionization chamber recording What radiology technique should be used for a patient with a tori and a small mouth? - Answer-Bisecting The aluminum filter protects the patient by removing what type of waves from the primary beam? - Answer-Long What may occur when the reproductive cells of an operator of a dental x-ray machine are affected by radiation? - Answer-Mutations What is the yearly maximum permissible dose (MPD), in rem, for an operator of radiographic equipment? - Answer-5 Which dental infection control area can the Occupational Safety and Health Administration cite for non-compliance with the Bloodborne Pathogens Standard? (Select the three that apply) - Answer-Protective clothing Hand hygiene Utility gloves If the frequency of a wave is high, what is the effect on the wavelength? - Answer-Short What factor(s) affect(s) the sharpness of a radiographic image? (select all that apply) - Answer-Patient movement Size of the focal spot Size of the silver halide crystals Which technique would be most helpful for a patient with a gag reflex? - Answer-Convey a confident attitude Which error will produce a lighter radiographic image? - Answer-Fixer solution too weak By what percentage does using digital imaging reduce patient exposure to radiation? - Answer-80 Which is true regarding the maximum permissible does (MPD) of an occupationally exposed pregnant worker? - Answer-Becomes the same as the general
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