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PRACTICE TEST FOR DANB # RHS QUESTIONS AND ANSWERS 2024
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PRACTICE TEST FOR DANB # RHS
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PRACTICE TEST FOR DANB # RHSCompared to a dentulous patient, radiographic exposure time on an edentulous adult
patient should - answer decrease
Inside the film packet, the film is wrapped with a/an - answer black paper sheet.
Which of the following cells exposed to radiation may be associated with leukemia? -
answer Somatic
Personnel monitoring for radiation exposure is done by - answer wearing a dosimeter.
For x-ray machines operating in ranges at or below 70 kVp, the total aluminum
equivalent filtration must be a minimum of - answer1.5 mm.
Film should be stored in - answer its original lead-wrapped packaging.
Prior to exposing dental radiographs on a visually impaired patient, the dental assistant
should - answeruse touch to explain the equipment and procedure
To assist the patient in controlling the gag reflex, the dental assistant should -
answeruse a distraction technique.
If a patient did not remove earrings prior to exposing a panoramic, the radiograph could
have - answerghost images.
Dental assistants exposing x-rays can best be protected from scatter radiation by -
answerstanding behind a lead barrier.
Which of the following affects the speed of the electrons emitted from the tubehead? -
answerkVp
A step wedge can be used to demonstrate - answerfilm contrast.
Which of the following affects the quantity of x-rays being emitted from the tubehead? -
answermA
Dental healthcare personnel can BEST shield themselves from radiation during patient
exposure by standing behind - answera drywall barrier.
The most common artificial radiation exposure comes from - answermedical radiation.
, Which of the following landmarks is useful when mounting films in the maxillary
posterior area? - answerFloor of the maxillary sinus
Radiation injury can be measured by - answerdose rate.
Which of the following radiograph techniques is recommended for a patient with a
shallow palate? - answerBisecting
Most bilateral findings in radiographs are considered - answernormal anatomic
landmarks.
When taking radiographs on a small child who cannot hold the film intra-orally, the
dental assistant should - answerask a parent or guardian to hold the film.
The BEST radiograph to evaluate a suspected salivary stone in the submandibular
gland is a/an - answerocclusal
To produce ionizing radiation, an atom must - answeradd an electron.
According to the inverse square law, when changing the PID length from 8 to 16 inches,
the beam's intensity is - answer1/4 as intense
The amount of radiation and exposure time needed to produce a diagnostic radiograph
is best determined by - answerfilm speed
Which of the following quality control tests evaluates safelighting in the darkroom? -
answerCoin test
When taking a panoramic radiograph, the patient's head should be oriented -
answerwith the midsagittal plane perpendicular to the floor.
Which of the following errors occur when the vertical angulation is incorrect? -
answerElongation
Which of the following radiation injury theories describes cells that are damaged by way
of absorption? - answerIndirect
During film processing, which of the following can cause a dark image? -
answerOverdeveloped film
Which of the following may cause film fogging? - answerUsing expired film
If there are no teeth to serve as guides, which of the following landmarks indicates a
maxillary molar area radiograph? - answerTuberosity
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