Processing Radiographs and Quality Assurance Final
Quality control for the darkroom should include checking for light leaks every:
6 months
F-speed dental x-ray film reduces radiation exposure to the patient by __% compared with D-speed dental x-ray film.
60
Which is the first step in developing an administrative quality control plan?
Develop and maintain a written description of the quality assurance plan.
Which of the following statements is true regarding federal and state regulations on the use of dental x-ray equipment?
Most states have laws that require inspections of dental x-ray equipment on a regular basis.
A record-keeping log for processing solution does not need to include the:
Name of the solution used to clean the tanks.
Failure to obtain informed consent from a patient prior to exposure of dental radiographs can lead to charges of:
Negligence
Green-sensitive extraoral film is used with cassettes that have which type of intensifying screen?
Rare earth
All of the following are true regarding the transfer of dental images except:
The originals are sent.
When placing a dental film in the patient's mouth, the white side is placed ____ the dental x-ray tubehead, and the raised dot to the ____ surface.
Toward; occlusal or incisal
A good protocol to follow for decreasing the contamination of dental imaging equipment if additional supplies are needed during a procedure is to:
Use overgloves.
When film emulsion interacts with x-rays, the result is:
a latent image.
PSPs:
are a major source of cross-contamination
Positioning instruments in digital radiography:
assist in film placement and keep the patient's fingers from being exposed.
When a film passes through fixer solutions before developing, the film will appear:
clear
The safest place to store unopened boxes of dental film is in the:
darkroom
Dental images are the property of the:
dentist
The correct order of steps in manual film processing is:
develop, rinse, fix, wash.
One reason for a lighter than normal radiograph is the:
developer solution is too weak.
The image below displays which error?
finger prints
Faster film speed would be associated with _____ silver halide crystals, a _______ emulsion, and presence of special radiosensitive dyes.
larger; thicker
Digital radiography requires less radiation than traditional radiography because the:
sensor is more sensitive to x-ray energy.
The image below displays which error?
herringbone
Solutions should have been changed in the processor 1 week ago. Continuing to use exhausted developer will result in ____ films.
light
The life of the automatic processer solutions is reduced rather than extended when:
more time has elapsed since the last complete change of processing solutions.
Each of the following is true about digitizing film-based radiographic images except:
digitized film-based images cannot be enhanced by computer software.
Clear spots on a processed film can be caused by:
fixer contacts film prior to processing
The purpose of the lead foil in the dental film packet is to:
reduce film fogging.
All of the following are true statements about phosphor storage plate (PSP) imaging system imaging plates except they:
should be autoclaved.
The recommended distance between the safelight and where the films are unwrapped is:
4 feet
The ideal time and temperature for manual developing is:
5 minutes at 65° C.
Transporting PSP films should be done by placing them in:
A black transfer box
The image below displays which error?
Blurry (patient movement) and creased emulsion
Who can be held legally responsible for a dental assistant's actions?
Both the dentist and assistant
When developer solution in an automatic processor is warmer than 83° F, the processed film will appear:
Dark or black
It is the responsibility of the ____ to discuss the need for dental imaging.
Dentist
Who is responsible for overall quality assurance in a dental practice?
Dentist
What should the dental assistant do if a patient refuses dental imaging?
Document in the patient's record the fact that he or she refused recommended dental imaging.
Given normal use, processing solutions should be changed:
Every 3 to 4 weeks.
The silver halide crystals are located within which of the following layers of the radiographic film?
Gelatin that suspends the emulsion.
Once films are removed from the mouth, they are considered contaminated and should be:
Handled only with gloved hands.
The device that intensifies or increases the effect of the radiation and decreases the amount of exposure time needed when exposing an extraoral radiograph is a(n):
Intensifying screen.
Automatic film processing requires _____ than manual film processing does.
Less equipment
Dental patient records must contain documentation of the ______ of dental images taken.
Number and type
Following the completion of the film-screen contact test, areas of good film-screen contact will be:
Of uniform density
The simplest method for ensuring the freshness of each box of dental x-ray film is to:
Process one film from each box with fresh chemicals.
Calibration of dental x-ray equipment should be performed by a:
Qualified technician.
Each of the following must be disclosed to the patient before obtaining informed consent for dental radiographs except one. Which one is the EXCEPTION?
Rights of the patient as owner of the images
All of the following statements are true regarding the care of intensifying screens and cassettes except:
Screens should be cleaned with a commercial cleaner after each use.
According to the Centers for Disease Control (CDC) Guidelines for Infection Control in Dental Healthcare Settings—2003, digital radiography sensors:
Should use FDA-cleared barriers.
Fixer cutoff will result in a _____ border.
Straight black.
Which of the following time and temperature errors will result in reticulation of the film emulsion?
Sudden temperature change between developer and water bath
Quality assurance in the dental office is a way of ensuring that everything possible is being done to produce high-quality diagnostic images and includes quality control:
Tests and administration procedures.
The image below displays which error?
Water marks
Following removal of an exposed film or PSP from a patient's mouth, the film/PSP should be:
Wiped free of saliva using a dry 2 × 2-inch gauze sponge or paper towel.
Developer strength can be checked by using:
a reference image or a stepwedge image.
Sterilized positioning instruments should be removed from the packages:
after the patient is seated.
The category of digital imaging similar to faxes and video equipment that uses a sensor with a cord attached to the computer is:
direct digital imaging.
A plastic or metal film cassette holds and protects the extraoral film. During exposure, the side of the cassette must face the patient is the _____ side.
front
Developer strength can be checked by using
reference image stepwedge image
All of the following are true statements about storage plates used with phosphor storage plate (PSP) imaging systems except that:
they utilize radio frequency transmission to transmit the image to the computer via radio waves.
For a film to be properly processed, it should be left in a fixer solution, at full strength, for:
2 minutes.
_____ hardens the film emulsion during film processing.
Fixing
Dental film holders, used to position and hold the dental x-ray films in the patient's mouth, include:
Rinn XCP instruments.
The charge-coupled device (CCD) in direct digital imaging sensors is made of:
Silicon.
The Consumer-Patient Radiation Health and Safety Act is a federal law that requires all:
persons who use x-rays to take dental images to be properly trained and certified.
When loading an extraoral film into the cassette prior to exposure, the
procedure must be done in the darkroom.
The image below displays which error?
under exposed or under processed
The safelight in the darkroom can be tested by:
using the coin test
Regulations regarding certification for dental assistants in radiography:
vary from state to state.
When a daily radiograph is lighter than the reference radiograph, it indicates the developer is too:
weak
The most commonly used film size for adult intraoral dentistry is size:
#2
According to the test for x-ray film freshness, the film is fresh and has been properly stored and handled when the processed film appears clean with a slight ______ tint.
Blue
All of the following are true statements regarding the preparation of the radiography operatory for dental imaging except:
Barriers do not need to be used because spatter of blood and saliva is unlikely.
Which of the following is an extraoral film that is placed outside the mouth during dental x-ray exposure procedures?
Cephalometric
The image below displays which error?
Cone cut
Which of the following statements about duplicating film is not correct?
The emulsion side of the film appears shiny.
