HESI Radiology Exam Questions With
Correct Answers
/. 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 public
/.Which color Rinn XCP is used for bitewing placement? - Answer-Red
/.Which is the first clinical sign of excessive exposure to radiation in an operator of
dental x-ray equipment or patients receiving radiation? - Answer-Erythema
/.Which position indicating device produces the greatest amount of scatter radiation? -
Answer-Pointed plastic
/.Within the automatic processor, which is the second solution the films encounter? -
Answer-Fixer
/.Which step is not recommended for mounting films? - Answer-Hold the films up to a
window to view
/.Infection control procedures before x-ray exposure included which aspects? (Select
the four that apply) - Answer-Lead apron
Radiographer
Treatment area
Supplies and equipment
/.Which effect of radiation refers to the production of mutations? - Answer-Genetic
/.Which component of a dental packet prevents backscattered radiation from reaching
the film? - Answer-Lead foil backing
/.Which mounted radiographs would be interpreted as if looking directly at the patient? -
Answer-Convex
/.Which statement concerning radiation is true? - Answer-The diagnostic benefit of
radiographs outweighs the risk of radiation exposure
/.Which is an appropriate reason to expose a periapical radiograph? - Answer-Pulpitis
/.Which function characterizes aluminum filtration when placed inside the x-ray
tubehead? - Answer-Makes the beam more penetrating
/.Which agency dictates the maximum permissible dose (MPD) an operator may
receive? - Answer-National Council on Radiation Protection and Measurements
Correct Answers
/. 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 public
/.Which color Rinn XCP is used for bitewing placement? - Answer-Red
/.Which is the first clinical sign of excessive exposure to radiation in an operator of
dental x-ray equipment or patients receiving radiation? - Answer-Erythema
/.Which position indicating device produces the greatest amount of scatter radiation? -
Answer-Pointed plastic
/.Within the automatic processor, which is the second solution the films encounter? -
Answer-Fixer
/.Which step is not recommended for mounting films? - Answer-Hold the films up to a
window to view
/.Infection control procedures before x-ray exposure included which aspects? (Select
the four that apply) - Answer-Lead apron
Radiographer
Treatment area
Supplies and equipment
/.Which effect of radiation refers to the production of mutations? - Answer-Genetic
/.Which component of a dental packet prevents backscattered radiation from reaching
the film? - Answer-Lead foil backing
/.Which mounted radiographs would be interpreted as if looking directly at the patient? -
Answer-Convex
/.Which statement concerning radiation is true? - Answer-The diagnostic benefit of
radiographs outweighs the risk of radiation exposure
/.Which is an appropriate reason to expose a periapical radiograph? - Answer-Pulpitis
/.Which function characterizes aluminum filtration when placed inside the x-ray
tubehead? - Answer-Makes the beam more penetrating
/.Which agency dictates the maximum permissible dose (MPD) an operator may
receive? - Answer-National Council on Radiation Protection and Measurements
