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DANB RHS exam booklet | Questions And Answers Latest {} A+ Graded | 100% Verified
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DANB RHS exam booklet | Questions And Answers Latest {2024- 2025} A+ Graded | 100%Verified
Which of the following exposures is used to diagnose interproximal caries? - bitewing
The population most susceptible to radiation damage is - infants
To minimize potential infections from semi-critical items it is important the operator - clean and
disinfect devices after removal of surface barriers
Patient should wear a thyroid collar during which type of radiographic exposure - Intraoral radiograph
The total destruction of microorganisms and spores on reusable instruments is accomplished by -
sterilizing
Which of the following will best protect the dental assistant from cross contamination, while exposing
radiographs - gloves
The annual maximum accumulated dose of radiation for dental assistant is based on which of the
following calculations - Age minus 18 times 5 rems/year
Long-term effects of exposure to radiation may be associated with - birth abnormalities
When changing the 8 inch PID to a 16 inch PID, which of the following is used to determine the intensity
of the beam - inverse square law
Compared to the paralleling technique a disadvantage of the bisecting angle technique is - image
distortion
Blurred radiographic, images are often caused by - patient movement during exposure
,Dental, healthcare personnel can best shield themselves for mediation during patient exposure by
standing behind - a drywall barrier
Added filtration and x-ray tubeHead protects the - patient
Processed PSP plates should be handled by the edges to prevent - scratches
Which of the following is a disposable intraoral PSP holder device? - Stabe
When exposing radiographs, what is the minimum distance, the operator should stand from the
tubeHead - 6 feet
A radiograph will automatically be retaking when there is a - Double exposure
Which of the following causes the enter proximal areas of the teeth to appear overlapped - Improper
horizontal angulation
Impacted third molars are best seen with what type of radiograph - panoramic
According to the CDC, how are the transmission of pathogens minimized when using phosphorus
sensors to capture radiographic images? - By placing a plastic barrier over the sensor
Which of the following radiograph techniques is recommended for a patient with a shallow palate -
bisecting
The main purpose of using a lead apron with a thyroid collar, when exposing dental radiographs is to
protect the patient from - scatter radiation
When you're moving a protective barrier after the exposure of radiographs, if a dental assistant touches
the surface beneath the barrier, and the dental assistant must - Disinfect with a intermediate level
disinfectant
, Which of the following affects the quantity of x-rays being admitted from the tube head - mA
After using a lead apron on a patient for digital radiograph exposure, it should be - wiped with
intermediate disinfectant
Which of the following is the measurement of force that refers to the potential difference between two
electrical charges? - voltage
What effect can be caused when exposed to radiation? - Radiation has the potential to cause harmful
biologic changes
When documenting a lesion found on an image of all of the following should be described, except -
severity
The purpose of the aluminum disc in the x-ray tube head is to - filter out long wave x-rays from the
primary beam
The most common reason for taking bitewing radiographs is to evaluate - interproximal caries
Which of the following can be used to measure excessive occupational exposure - dosimeter
Which of the following is a long-term effective radiation? - Genetic defects
Which of the following errors occur when the vertical ambulation is incorrect - Elongation
Which of the following can be observed on a panoramic radiographed when the patient channel is
tipped downward - Exaggerated smile
Which organization, regulates, disinfectants, and chemical sterilants - EPA
After the completion of a radiographic procedure over the PID should be - Disinfected
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