RHS exam #2 UPDATED ACTUAL
Questions and CORRECT Answers
Which of the following exposures is used to diagnose inter proximal caries? - CORRECT
ANSWER - Bitewing
The population most susceptible to radiation damage is - CORRECT ANSWER - infants
To minimize potential infections from semi critical items it is important the operator -
CORRECT ANSWER - clean and disinfect devices after removal of surface barriers
patients should wear a thyroid collar during which type of radiographic exposure? - CORRECT
ANSWER - intra oral radiograph
The total destruction of microorganisms and spores on reusable instruments is accomplished by -
CORRECT ANSWER - sterilizing
Which of the following will best protect the dental assistant from cross contamination while
exposing radiographs? - CORRECT ANSWER - Gloves
The annual maximum accumulated dose (MAD) of radiation for dental assistant is based on
which of the following calculations? - CORRECT ANSWER - age minus 18 times 5
rems/year
long term effects of exposure to radiation may be associated with - CORRECT
ANSWER - 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? - CORRECT ANSWER - inverse square law
, Compared to the paralleling technique a DISADVANTAGE of the bisecting angle technique is -
CORRECT ANSWER - image distortion
blurred radiographic images are often caused by - CORRECT ANSWER - patient
movement during exposure
dental healthcare personnel can best shield themselves from radiation during patient exposure by
standing behind - CORRECT ANSWER - a drywall barrier
added filtration in the x-ray tube head protects the - CORRECT ANSWER - patient
processed PSP plates should be handled by the edges to prevent - CORRECT ANSWER -
scratches
which of the following is a disposable intramural PSP holder device? - CORRECT
ANSWER - Stabe
when exposing radiographs, what is the minimum distance the operator should stand from the
tube head - CORRECT ANSWER - 6 feet
a radiograph will automatically be retaken when there is a - CORRECT ANSWER -
double exposure
which of the following causes the interproximal areas of the teeth to appear overlapped? -
CORRECT ANSWER - improper horizontal angulation
impacted third molars are best seen with what type of radiograph? - CORRECT
ANSWER - panoramic
Questions and CORRECT Answers
Which of the following exposures is used to diagnose inter proximal caries? - CORRECT
ANSWER - Bitewing
The population most susceptible to radiation damage is - CORRECT ANSWER - infants
To minimize potential infections from semi critical items it is important the operator -
CORRECT ANSWER - clean and disinfect devices after removal of surface barriers
patients should wear a thyroid collar during which type of radiographic exposure? - CORRECT
ANSWER - intra oral radiograph
The total destruction of microorganisms and spores on reusable instruments is accomplished by -
CORRECT ANSWER - sterilizing
Which of the following will best protect the dental assistant from cross contamination while
exposing radiographs? - CORRECT ANSWER - Gloves
The annual maximum accumulated dose (MAD) of radiation for dental assistant is based on
which of the following calculations? - CORRECT ANSWER - age minus 18 times 5
rems/year
long term effects of exposure to radiation may be associated with - CORRECT
ANSWER - 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? - CORRECT ANSWER - inverse square law
, Compared to the paralleling technique a DISADVANTAGE of the bisecting angle technique is -
CORRECT ANSWER - image distortion
blurred radiographic images are often caused by - CORRECT ANSWER - patient
movement during exposure
dental healthcare personnel can best shield themselves from radiation during patient exposure by
standing behind - CORRECT ANSWER - a drywall barrier
added filtration in the x-ray tube head protects the - CORRECT ANSWER - patient
processed PSP plates should be handled by the edges to prevent - CORRECT ANSWER -
scratches
which of the following is a disposable intramural PSP holder device? - CORRECT
ANSWER - Stabe
when exposing radiographs, what is the minimum distance the operator should stand from the
tube head - CORRECT ANSWER - 6 feet
a radiograph will automatically be retaken when there is a - CORRECT ANSWER -
double exposure
which of the following causes the interproximal areas of the teeth to appear overlapped? -
CORRECT ANSWER - improper horizontal angulation
impacted third molars are best seen with what type of radiograph? - CORRECT
ANSWER - panoramic
