DANB RHS Practice Test 2019 Questions with Correct Answers
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DANB RHS
DANB RHS Practice Test 2019 Questions with Correct Answers
What is a measurement of tissue damage from x ray energy? - Answer-Radiation absorbed dose
The ADA recommends that radiographs be mounted with embossed dots - Answer-All facing same direction
To maintain quality assurance while proce...
DANB RHS Practice Test
2019 Questions with
Correct Answers
What is a measurement of tissue damage from x ray energy? - Answer-Radiation
absorbed dose
The ADA recommends that radiographs be mounted with embossed dots - Answer-All
facing same direction
To maintain quality assurance while processing films, dental assistants should record -
Answer-Date solutions were changed
After completion of radiographic procedure, PID should be - Answer-disinfected
Most important step the dentist can take in protecting patients from x radiation is to? -
Answer-properly prescribe radiographs
Dilaceration in a radiographic image indicates the - Answer-root shape is abnormally
bent or curved
Back-scatter radiation to the film is prevented by the - Answer-lead foil
Dental unit surfaces and counter tops should be cleaned with an EPA registered ? -
Answer-Intermediate level disinfectant
What increases density on a duplicate film? - Answer-Decrease exposure time
Most essential when labeling the film mount? - Answer-Patient name
Personnel radiation monitoring devices are worn to - Answer-record the occupational
exposure received by the operator
The population most susceptible to radiation damage is - Answer-infants
PID shade that most effectively reduces patient exposure to radiation is - Answer-
Rectangular
, What radiation effects increase in severity as more radiation is absorbed by somatic
cells? - Answer-Nonstochastic
When changing the 8-inch PID to a 16-inch PID, which of the following is used to
determine the intensity of the beam? - Answer-Inverse square law
Radiation deflecting off the patients head is called - Answer-scatter radiation
When taking occlusal, film packet should extend from patients mouth approx ? -
Answer-1/8-1/4 of an inch
Best way for DA to be protected from scatter radiation? - Answer-Standing behind lead
barrier
Primary purpose of BWX is to evaluate - Answer-Interproximal decay
What best describes the action of the developer solution? - Answer-Converts exposed
SHC
When documenting lesion found on radiograph, what should be described? - Answer-
Location, size, appearance
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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