Processing Radiographs and Quality Assurance DAS131

The image below displays which error?

herringbone

The silver halide crystals are located within which of the following layers of the radiographic film? A. Acetate film base B. Adhesive layer that attaches the emulsion to the film base . C. Gelatin that suspends the emulsion . D. Protective layer that protects the emulsion surface

C. Gelatin that suspends the emulsion .

When a film passes through fixer solutions before developing, the film will appear: A. Clear B. Completely black C. Gray D. Yellowish brown

A. Clear

The safest place to store unopened boxes of dental film is in the: A. darkroom . B. room. C. refrigerator D. treatment room

A. Darkroom

Who is responsible For overall quality assurance in a dental practice ? A. Dentist B. Dental assistant C. Dental hygienist D. Office manager

A. Dentist

One reason for a lighter than normal radiograph is the: A.

A. Developer solution is too weak

The image below displays which error?

Blurry (patient movement) and creased emulsion

For a film to be properly processed, it should be left in a fixer solution, at full strength, for: A. 30 seconds B. 1 minute C. 2 minutes D. 5 minutes

C. 2 minutes

For a film to be properly processed, it should be left in a fixer solution, at full strength, for: A. 30 seconds. B. 1 minute . C. 2 minutes D. 5 minutes

C. 2 minutes

F- speed dental x-ray film reduces radiation exposure to the patient by _______ % compared with D-speed dental x-ray film. A. 20 B. 40 C. 60 D. 80

C. 60

When film emulsion interacts with x-rays, the result is: A. visible distortion B. A distorted light source C. A latent image D. A negative of the image

C. A latent image

According to the test for xray film freshness, the film is fresh and has been properly stored and handled when the processed appears clean with slight ________ tint. A. Orange B. Green C. Blue D. Red

C. Blue

Who can be held legally responsible for a dental assistant's actions? A. The dentist B. The dental assistant C. Both the dentist and assistant D. The patient

C. Both the dentist and assistant

Which of the following is an extraoral film that is placed outside the mouth during dental x-ray exposure procedures ? A.Periapical B. Bite wing C. Cephalometric D. Occlusal

C. Cephalometric

It is the responsibility of the _______ to discuss the need for dental imaging. dental assistant dental hygienist dentist dental hygienist and dentist

C. Dentist

The category of digital imaging similar to faxes and video equipment that uses a sensor with a cord attached to the computer is A. computed radiography programs B. indirect digital imaging C. direct digital imaging D. CAD/CAM

C. Direct digital imaging

Clear spots on a processed film can be caused by: A. Static electricity B. Solutions are too warm C. Fixer contacts film prior to processing D. Drops of developer on a fixed film

C. Fixer contacts film prior to processing

________ hardens the film emulsion during film processing . A. Rinsing B. Developing C. Fixing D. Washing

C. Fixing

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): A. screen film B. film cassette C. intensifying screen D. nonscreen

C. Intensifying screen

The image below displays which error?

Fingerprints

The image below displays which error?

Under exposed or under processed

The image below displays which error?

Watermarks

What should the dental assistant do if a patient refuses dental imaging? A. Document in the patient's record the fact that he or she refused recommended dental imaging B. Tell the patient that the dentist doesn't mind working without dental images C.Attempt to take the dental images anyway D. Ask the patient to sign a waiver releasing the dentist from any liability for treating the patient without taking dental radiographs

A. Document in the patient's record the fact that he or she refused recommended dental imaging

Dental patient records must contain documentation of the ________ of dental images taken. A. Number and type B. Kilovoltage potential (kVp) C. Millamperage D. Exposure time

A. Number and type

The charge-coupled device (CCD) in direct digital imaging sensors is made of: A. silicon B. phosphor C. tungsten D. Silver halide

A. Silicon

When a daily radiograph is lighter than the reference radiograph, it indicates the developer is too: A. Weak B. Strong C. Hot D. Weak or hot

A. Weak

Developer strength can be checked by using : A. a reference image or a stepwedge image . B. the time it takes the film to " clear " C. a test strip to check the strength of the solution D. a thermometer

A. a reference image or a stepwedge image .

PSPS: A. are a major source of cross- contamination B. Should be wiped with a cotton ball after removed from the patient's mouth C. should be heat sterilized D. Should be immersed in disinfecting solution

A. are a major source of cross- contamination

Positioning instruments in digital radiography: A. assist in film placement and keep the patient's fingers from being exposed B. are used with roundbut not rectangularposition indicating device (PID). C. are exactly the same x-ray film holders used in conventional techniques D. include the Rinn XCP system

A. assist in film placement and keep the patient's fingers from being exposed

A plastic or metal film cassette holds and protects the extraoral film. During exposure, the side of the cassette the must face the patient is the _____ side. A. front B. Back C. right D. Left

A. front

Faster film speed would be associated with ________ silver halide crystals , a __________ emulsion, and presence of special radiosensitive dyes A. larger thicker B. Larger thinner C. Smaller thicker D. smaller thinner

A. larger thicker

Following the completion of the film-screen contact test, areas of good filmscreen contact will be: A. of uniform density B. Of varying densities C. Darker D. Lighter

A. of uniform density

The Consumer - Patient Radiation Health and Safety Act is a federal law that requires all:

A. persons who use xrays to take dental images to be properly trained and certified

All of the following statements are true regarding the care of intensifying screens and cassettes except : A. screens should be cleaned with a commercial cleaner after each use. B. an antistatic solution should be applied to the screen after cleaning . C. intensifying screens that are scratched should be replaced D. intensifying screens should be checked for dirt and scratches

A. screens should be cleaned with a commercial cleaner after each use.

The safelight in the darkroom can be tested by: A. using the coin test B. all the lights in the and looking for any white light C. Using a step wedge D. Taking a reference image

A. using the coin test

The most commonly used film size for adult intraoral dentistry is size: A. #0 B. #2 C. #3 D. #4

B. #2

The recommended distance between the safelight and where the films are unwrapped is: A. 2 feet B. 4 feet C. 6 feet D. As close as possible

B. 4 feet

The ideal time and temperature for manual developing is: A. 45 seconds at 85°F B. 5 minutes at 65°F C. 5 minutes at 78°F D. 5 minutes at 60°F

B. 5 minutes at 65°F

Quality control for the darkroom should include checking for light leaks every: A. 3 months B. 6 months . C. 12 months D. 24 months

B. 6 months

Which is the first step in developing an administrative quality control plan? A. Assign tasks to staff members, and ensure that each individual is trained to perform the assigned duties. B. Develop and maintain a written description of the quality assurance plan. C. Maintain records of monitoring and maintenance control tests. D. Review the plan periodically

B. Develop and maintain a written description of the quality assurance plan.

The correct order of Steps in Manual film processing is: A. Fix, rinse, develop, wash B. Develop, rinse fix, wash C. fix wash, rinse wash D. Rinse, develop, fix, wash

B. Develop, rinse fix, wash

Which of the following statements about duplicating film is not correct A. The emulsion is only on one side B. Emulsion side of the film appears shiny C. Duplicating film is not intended to be used intraorally D. Duplicating film is exposed by visible white light

B. Emulsion side of the film appears shiny

Once films are removed from the mouth, they are considered contaminated and should be: A. given to the patient to hold B. handled only with gloved hands. C. left on the counter in the operatory to accelerate exposure D. heat-sterilized

B. Handled only with gloved hands

Solutions should have been changed in the processor 1 week ago. Continuing to use exhausted developer will result in ________ films. A. dark B. Light C. white D. clear

B. Light

When loading an extra oral film into the prior to exposure, the: A. Film comes preloaded in the cassette. B. Procedure must be done in the dark room. C. Film may be place in the folder outside the dark room D. Film does not need an intensifying screen.

B. Procedure must be done in the dark room.

The purpose of a lead foil sheet in the film packet is: A. provide stiffness to the film B. Reduces film fogging C. absorb the primary beam D. make the packet more flexible and resilient

B. Reduce fim fogging

Dental film holders, used to position and hold the dental x-ray films in the patient's mouth, include: A. Rinn XCP-DS Instruments B. Rinn XCP Instruments C. Film cassette D. Position indicator device (PID)

B. Rinn XCP instruments

Fixer cut off result in a __________ border A. Straight white B. Straight black C. Curved white D. Curved black

B. Straight black

Which of the following statements about to duplicating film is not correct A. Emulsion is only on one side. B. The emulsion side of the film appears shiny. C. Duplicating film is not intended to be used intraorally. D. Duplicating film is exposed by white light

B. The emulsion side of the film appears shiny.

When placing a dental film in a patient's mouth, the Whiteside is placed ____________________ the dental x-ray tube ahead and the raised dot to the _______________ surface. A. Towards ;apical, B. Torward; occlusal or incisal C. Away from; apical. D. Away from; occlusal or incisal.

B. Torward; occlusal or incisal

Regulations regarding certification for dental assistance in Radiography: A. Are not required by federal law. B. Vary from state to state. C. Do not exist. D. Require dental assisting national board (DANB) certification in all states.

B. Vary from state to state.

Transporting PSP films should be done by placing them in: A. your lab pocket B. a black transfer box C. paper cup D. a baggy with disinfecting solution

B. a black transfer box

Sterilized positioning instruments should be removed from the packages: A. before the patient is seated B. after the patient is seated C. At any time D. in the sterilization area

B. after the patient is seated

Automatic film processing requires_________________ than manual film processing does A. More time B. less equipment C. more equipment D. more space

B. less equipment

The most critical component in film processing quality control is A. processing two test films each day B. maintaining the freshness of the processing solutions C. Maintaining the Darkroom D. Checking the safe light

B. maintaining the freshness of the processing solutions

The life of the automatic processer solutions is reduced rather than extended when: A. fewer films are being processed B. more time has elapsed since the last complete change of processing solutions C. the processor has an automatic replenisher D. manual replenishing has been accomplished on a daily basis.

B. more time has elapsed since the last complete change of processing solutions

The simplest method for ensuring the freshness of each box of dental x - ray film is to : A. check the expiration date . B. process one film from each box with fresh chemicals . C. use the clearing test . D. split the number of images of a full mouth set or bitewing set between the new box of dental x - ray film and a previously opened box and compare the results

B. process one film from each box with fresh chemicals .

Calibration of dental x-ray equipment should be performed by a: A. Dental assistant, B. qualified technician, C. dentist, D. dental supply, company, sales representative

B. qualified technician,

All of the following are true regarding the transfer of dental images except: A. a reasonable fee may be charged B. the originals are sent C. the dentist should be informed of the patient's request D. when and where the images were sent need to be recorded on the patient's chart .

B. the originals are sent

A good protocol to follow for decreasing the contamination of dental imaging equipment if additional supplies are needed during a procedure is to: A. use bare hands to retrieve additional supplies B. ask the patient to retrieve the supplies for you C. use overgloves. D. obtain the supplies and then redisinfect all surfaces and replace all barriers

C. Use over gloves

All of the following are true statements regarding the preparation of the radiography operatory for dental imaging except: A. barriers should be used on all surfaces that cannot be easily cleaned and disinfected . B. barriers are preferred over switches to prevent electrical shorts C. barriers do not need to be used because spatter of blood and saliva is unlikely D. the lead apron should be considered contaminated and wiped with a disinfectant after each use

C. barriers do not need to be used because spatter of blood and saliva is unlikely

Given normal use, processing solutions should be changed : A. once a day B. once a week. C. every 3 to 4 weeks. D. annually.

C. every 3 to 4 weeks.

Following removal of an exposed film or PSP from a patient's mouth, the flm / P * SP should be: A. sterilized in a heat sterilizer B. immersed disinfecting solution C. wiped free of saliva using a dry 2*2- inch gauze sponge or paper towel . D. rinsed off in the sink and placed in an ultrasonic cleaner

C. wiped free of saliva using a dry 2*2- inch gauze sponge or paper towel .

The image below displays which error?

Cone cut

Each of the following is true about digitizing film based radiographic images except A. The process is similar to other film duplication B. Desktop scanners capture ligh signal C. It duplicates with slightly less detail than the original film D. Digitized film based images cannot be enhanced by computer software.

D. Digitized film based images cannot be enhanced by computer software.

Which of the following statements is true regarding federal and state regulations on the use of dental x-ray equipment? A. All dental x-ray machines manufactured or sold in the United States after 1934 must meet federal regulations. B. The use of dental x-ray equipment is regulated by federal but not state regulations . C. The federal government requires x-ray machines to be registered and charges a fee for this registration . D. Most states have laws that require inspections of dental x -ray equipment on a regular basis .

D. Most states have laws that require inspections of dental x -ray equipment on a regular basis .

Failure to obtain informed consent from a patient prior to exposure of dental radiographs can lead to charges of: A. Informed consent B. disclosure C. respondeat superior D. negligence

D. Negligence

Each of the following must be disclosed to the patient before obtaining informed consent for dental radiographs except one . Which one is the EXCEPTION ? A. Risks and benefits of the images B. Person who will be exposing the images C. Consequences of not having images taken D. Rights of the patient as owner of the images

D. Rights of the patient as owner of the images

A record-keeping log for processing solution does not need to include the: A. date of solution replacement B. date the tanks were cleaned. C. date of solution replenishment D. name of the solution used to clean the tanks

D. name of the solution used to clean the tanks

All of the following are true statements about storage plates used with phosphor storage plate ( PSP ) imaging systems except that A. they are made of phosphor . B. the latent image will stay on the plate for hours C. they should not be exposed to light before scanning D. they utilize radio frequency transmission to transmit the image to the computer via radio waves

D. they utilize radio frequency transmission to transmit the image to the computer via radio waves