DANB RHS exam booklet Questions with Complete Answers
Which of the following exposures is used to diagnose interproximal caries?
- Answer✔️✔️-bitewing
The population most susceptible to radiation damage is - Answer✔️✔️-
infants
To minimize potential infections from semi-critical items it is important the
operator - Answer✔️✔️-clean and disinfect devices after removal of surface
barriers
Patient should wear a thyroid collar during which type of radiographic
exposure - Answer✔️✔️-Intraoral radiograph
The total destruction of microorganisms and spores on reusable
instruments is accomplished by - Answer✔️✔️-sterilizing
Which of the following will best protect the dental assistant from cross
contamination, while exposing radiographs - Answer✔️✔️-gloves
The annual maximum accumulated dose of radiation for dental assistant is
based on which of the following calculations - Answer✔️✔️-Age minus 18
times 5 rems/year
Long-term effects of exposure to radiation may be associated with -
Answer✔️✔️-birth abnormalities
1
,©SOPHIABENNET@2024/2025 Tuesday, August 20, 2024 10:21 AM
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
Compared to the paralleling technique a disadvantage of the bisecting
angle technique is - Answer✔️✔️-image distortion
Blurred radiographic, images are often caused by - Answer✔️✔️-patient
movement during exposure
Dental, healthcare personnel can best shield themselves for mediation
during patient exposure by standing behind - Answer✔️✔️-a drywall barrier
Added filtration and x-ray tubeHead protects the - Answer✔️✔️-patient
Processed PSP plates should be handled by the edges to prevent -
Answer✔️✔️-scratches
Which of the following is a disposable intraoral PSP holder device? -
Answer✔️✔️-Stabe
When exposing radiographs, what is the minimum distance, the operator
should stand from the tubeHead - Answer✔️✔️-6 feet
A radiograph will automatically be retaking when there is a - Answer✔️✔️-
Double exposure
Which of the following causes the enter proximal areas of the teeth to
appear overlapped - Answer✔️✔️-Improper horizontal angulation
2
, ©SOPHIABENNET@2024/2025 Tuesday, August 20, 2024 10:21 AM
Impacted third molars are best seen with what type of radiograph -
Answer✔️✔️-panoramic
According to the CDC, how are the transmission of pathogens minimized
when using phosphorus sensors to capture radiographic images? -
Answer✔️✔️-By placing a plastic barrier over the sensor
Which of the following radiograph techniques is recommended for a
patient with a shallow palate - Answer✔️✔️-bisecting
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
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 - Answer✔️✔️-Disinfect with a intermediate level disinfectant
Which of the following affects the quantity of x-rays being admitted from
the tube head - Answer✔️✔️-mA
After using a lead apron on a patient for digital radiograph exposure, it
should be - Answer✔️✔️-wiped with intermediate disinfectant
Which of the following is the measurement of force that refers to the
potential difference between two electrical charges? - Answer✔️✔️-voltage
What effect can be caused when exposed to radiation? - Answer✔️✔️-
Radiation has the potential to cause harmful biologic changes
3