DANB RHS Practice Exam Questions with Correct Answers
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Course
DANB RHS
Institution
DANB RHS
DANB RHS Practice Exam Questions with Correct Answers
Dental x-rays should be prescribed when the - Answer-benefits outweigh the risk of harm.
Which of the following landmarks would be seen in a maxilliary anterior periapical radiograph? - Answer-incisive foramen
Personnel radiation monitori...
DANB RHS Practice Exam
Questions with Correct
Answers
Dental x-rays should be prescribed when the - Answer-benefits outweigh the risk of
harm.
Which of the following landmarks would be seen in a maxilliary anterior periapical
radiograph? - Answer-incisive foramen
Personnel radiation monitoring devices are worn to - Answer-record the occupational
exposure received by the operator
If a patient did not remove earrings prior to exposing a panoramic, the radiograph could
have - Answer-Ghost images
Which of the following is the measurement of force that refers to the potential difference
between two electrical charges? - Answer-voltage
When taking radiographs on a small child who cannot hold the film intra-orally, the
dental assistant should - Answer-ask a parent or guardian to hold the film.
Which of the following best describes what happens when two films contact each other
during processing? - Answer-Overlapped films
The best way to correct a conecutting error is to adjust - Answer-Film position
Which of the following should be labeled on the radiographic mount prior to film
duplication? - Answer-right and left sides
Which of the following lesions appears radiopaque on a radiograph? - Answer-Sclerotic
bone
The total destruction of microorganisms and spores on reusable instruments is
accomplished by - Answer-sterilizing
How often should step wedge quality control tests for a dental x-ray machine be
conducted? - Answer-daily
, The main purpose of using a lead apron with a thyroid collar when exposing dental
radiographs is to protect the patient from - Answer-scatter radiation
Most bilateral findings in radiographs are considered - Answer-normal anatomic
landmarks
Which of the following helps to decrease exposure of the thyroid gland from the primary
radiation beam? - Answer-paralleling technique
The most common reason for taking bitewing radiographs is to evaluate - Answer-
interproximal caries
To reduce the patient's anxiety about radiographic exposure the dental assistant should
- Answer-take time to explain the procedure
Which of the following landmarks is useful when mounting films of the mandibular
posterior area? - Answer-mental foramen
The amount of radiation and exposure time needed to produce a diagnostic radiograph
is best determined by - Answer-film speed
On a radiograph, when the contact area of one tooth is superimposed over the contact
of another, it is called - Answer-overlapping
Radiographs appear dark after processing when the developing solution is - Answer-too
warm
When preparing a patient for a radiographic procedure, PRIOR to putting on gloves the
dental assistant should - Answer-place the led apron.
Which of the following protection techniques is used to minimize x-radiation exposure to
the operator? - Answer-Structural shielding
If disposable barriers are not used during a radiographic procedure all clinical surfaces
should be - Answer-disinfected
Developing solution temperatures should be checked frequently when using - Answer-
manual processing
A cephalometric radiograph is PRIMARILY used to evaluate - Answer-Lateral jaw
development
Processed films should be handled by the edges to prevent - Answer-fingerprints
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