HESI Radiology Exam - Questions with Verified Answers

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HESI Radiology Exam - Questions with Verified Answers Which unit is a standard measurement of amount of radiation absorbed by a tissue? Gray Which suggestion is helpful when working with a patient t... hat has hypersensitive gag reflex? Instruct the patient to hold their leg in the air Which method is used to protect the operator by measuring radiation in dental office? Ionization chamber recording What radiology technique should be used for a patient with a tori and a small mouth? Bisecting The aluminum filter protects the patient by removing what type of waves from the primary beam? Long What may occur when the reproductive cells of an operator of a dental x-ray machine are affected by radiation? Mutations What is the yearly maximum permissible dose (MPD), in rem, for an operator of radiographic equipment? 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) Protective clothing Hand hygiene Utility gloves If the frequency of a wave is high, what is the effect on the wavelength? Short What factor(s) affect(s) the sharpness of a radiographic image? (select all that apply) 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? Convey a confident attitude Which error will produce a lighter radiographic image? Fixer solution too weak By what percentage does using digital imaging reduce patient exposure to radiation? 80 Which is true regarding the maximum permissible does (MPD) of an occupationally exposed pregnant worker? Becomes the same as the general public Which color Rinn XCP is used for bitewing placement? Red Which is the first clinical sign of excessive exposure to radiation in an operator of dental x-ray equipment or patients receiving radiation? Erythema Which position indicating device produces the greatest amount of scatter radiation? Pointed plastic Within the automatic processor, which is the second solution the films encounter? Fixer Which step is not recommended for mounting films? Hold the films up to a window to view Infection control procedures before x-ray exposure included which aspects? (Select the four that apply) Lead apron Radiographer Treatment area Supplies and equipment Which effect of radiation refers to the production of mutations? Genetic Which component of a dental packet prevents backscattered radiation from reaching the film? Lead foil backing Which mounted radiographs would be interpreted as if looking directly at the patient? Convex Which statement concerning radiation is true? The diagnostic benefit of radiographs outweighs the risk of radiation exposure Which is an appropriate reason to expose a periapical radiograph? Pulpitis Which function characterizes aluminum filtration when placed inside the x-ray tubehead? Makes the beam more penetrating Which agency dictates the maximum permissible dose (MPD) an operator may receive? National Council on Radiation Protection and Measurements What describes the time between exposure to radiation and appearance of clinical symptoms? Latent period Which type of toxin formation in cells must operators of x-ray equipment and patients receiving radiation be protected? Indirect Which errors cause a black line to appear on a processed film? (Select the two that apply) Film creasing Static electricity artifact What is the recommended area of exposure, in inches, as the beam reaches the patients face? 2.75 Which is a semi-critical instrument used in dental radiography procedures? Beam alignment devices Which oral region is most likely to elicit a gag reflex? Maxillary molars Which relates to the safety of an operator exposing radiographs? Dose response curve Which agent is responsible for converting the exposed silver halide crystals to black metallic silver? Hydroquinone Which statement is true? Pregnant patients often refuse radiographs for purely psychological reasons Which are the functions of the replenishing solutions? (Select two that apply.) Maintain adequate solution strength Compensates for loss of volume from oxidation [Show More]

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