DANB RHS Practice Test 2024 Questions and Answers
Added filtration in the xray tubehead protects the ___ - Answer✔️✔️-Patient
What equation is used to determine the occupational maximum
accumulated dose of radiation? - Answer✔️✔️-Age minus 18 times 5
rems/year
When preparing to take a digital radiograph, after selecting the appropriate
sensor size for the patient, the next step would be to? - Answer✔️✔️-Place a
barrier on the sensor.
What error occurs when the vertical angulation is incorrect? - Answer✔️✔️-
elongation and foreshortening
Semi critical instruments that must be sterilized/disposed of include? -
Answer✔️✔️-Film holding device
Blurred images are caused by? - Answer✔️✔️-Patient movement
Processing tanks should be cleaned when the - Answer✔️✔️-Solutions are
changed
What causes an image to be too light? - Answer✔️✔️-Weak developing
solution
The radiation that is formed by the interaction of x-rays with matter is -
Answer✔️✔️-Scatter radiation
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Most common xray used to evaluate a dental implant in an adult is -
Answer✔️✔️-Periapical
Long term affect of radiation? - Answer✔️✔️-Genetic affects
Most common area in the oral cavity for a dentigerous cyst? - Answer✔️✔️-
Around the third molars
What affects speed of electrons emitted from the tubehead? - Answer✔️✔️-
kVp
Chemical agents should be properly disposed of according to? -
Answer✔️✔️-federal, state and local laws
What organization regulates disinfectants and chemical sterilants? -
Answer✔️✔️-EPA
What influences sharpness of a radiograph? - Answer✔️✔️-Focal spot size
Most common exposure to detect periodontal disease is ? - Answer✔️✔️-
Periapical
The normalizing device can be used to monitor - Answer✔️✔️-developer
strength
What could cause a straight black line/border to appear on a radiograph -
Answer✔️✔️-Fixer solution level was low
Which film would be exposed to see the relationship of the alveolar bone? -
Answer✔️✔️-Vertical bitewing
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First step in processing radiographic film? - Answer✔️✔️-Developing
What should be labeled on the radio graphic mount prior to film
duplication? - Answer✔️✔️-Right and left sides
What was established to address the education and certification of
operators of radiographic equipment? - Answer✔️✔️-Consumer-Patient
Radiation Health and Safety Act
The time between patient exposure to radiation and the appearance of
biological damage is the - Answer✔️✔️-Latent period
Dental healthcare personnel who are pregnant can expose radiographs
during the - Answer✔️✔️-entire pregnancy
Paralleling technique requires the film be placed - Answer✔️✔️-away from
the tooth, toward the middle of the oral cavity.
The Buccal Object Rule is used to determine if a foreign body is located in
which direction? - Answer✔️✔️-lingual, buccal
Most common artificial radiation exposure comes from? - Answer✔️✔️-
Medical radiation
Radiation injury can be measured by - Answer✔️✔️-dose rate
Human tissue are mainly composed of - Answer✔️✔️-Water
When exposing radiographs, what is the minimum distance the operator
should stand from the tube head? - Answer✔️✔️-6 feet
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