Radiology State Exam

Is a current certificate for dental radiography required for an expanded functions dental assistant?

Only if they are engaging in dental radiography

The registered dental assistant holding a certificate of qualification in radiography is required to display their current certificate at their practice location

True

Which of the following agency is responsible for administrating and enforcing the dental assistants state dental practice act?

Iowa Dental Board

Which of the following agency is responsible for state radiation control and inspection of facilities using ionizing radiation?

Iowa Department of Public Health

which of the following agency is responsible for verifying minimum training standards and issuing qualification in dental radiography for dental assistants?

Iowa Dental Board

Which of the following refers to the rules of the Iowa Administrative Code 650- Chapter 22?

Radiography

Which of the following would you contact if you had a question in regards to the rules and regulations for dental assistants

Iowa Dental Board

Who is responsible for examining applicants and issuing a qualification in dental radiography?

Iowa Dental Board

A DANB certified dental assistant meets all requirements for the state in radiography qualification and does not have to apply to the board for qualification certificate

False

All of the following are possible penalties for violating the law EXCEPT

professional action

All of the following are requirements for a dental assistant to make radiographs EXCEPT

only certified dental assistants may obtain radiology qualifications

continuing education is required for the renewal of your radiography certificate. which of the following is the number of hours needed within the two year renewal period?

two hours

An approved IDB course of study for radiography qualification includes; clinical training, an examination, submitting the application and fee.

true

a dental assistant that is on trainee status cannot expose radiographs during the 12 month trainee period

false

a dental assistant trainee may make radiographs under which of the following conditions

under personal supervision by the dentist

Another name for the lead diaphragm is

collimator

Which of the following definitions describe the term mA?

determines the number of electrons available at the filament

which of the following is the component part of the dental x-ray machine that allows movement and positioning of the tubehead

extension arm

which of the following is the component part of the dental x-ray machine that contains the X-ray tube?

tubehead

which of the following part of the control panel controls how long electrons move based on the length of exposure

timer

which of the following determines the number of electrons (quantity) that will be used to create x-rays?

mA and timer

which of the following determines the force at which electrons move?

kVp

which statement equals more energy for the radiation beam?

short wavelength with high frequency

if the dentist looks at some films and tells you they want more shades (contrast) on the next film exposed, which of the following would you adjust on the control panel?

Increase kVp

increasing the kVp causes which of the following?

Short wavelength

which of the following definitions describe the term filters?

absorbing material, usually aluminum, placed in the path of the beam of radiation to remove (soft) x-rays

density refers to film blackening. which of the following adjustments can be made to lighten the density on the film?

decrease mA or time

which of the following definitions describe the term contrast?

the visual differences between shade ranging from black to white in adjacent areas of the radiographic film

which of the following part of the x-ray machine removes long wavelength )soft X-ray) for the central ray/primary beam?

filter

radiopaque refers to structures that do not have very much density

false

which of the following tissues is considered the most radio-resistant?

muscle cells

which cell is most sensitive to radiation?

bone marrow

From the following choose the cell that is least sensitive to radiation

nerve tissue

from the following choose the tissue/organs most sensitive to radiation

reproductive organ

standards have been established that set the maximum exposure levels for persons who operate x-ray equipment and the general public. which of the following describes this concept?

maximun permisible dose (MPD)

what radiation form when the primary x-ray strikes or contacts any type of matter (solid, ,liquid, gas)

secondary

barriers used during exposure of dental radiographs:

save time and help eliminate the presence of strong odors associated with chemical disinfectants

Blood borne pathogens may be transmitted in the dental office. which of the following would be transmitted primarily through saliva contamination?

hepatitis B, HIV, full-blown AIDS, and hepatitis C

which of the following should be sterilized after exposing radiographs?

non-heat sensitive XCPs

All forms of microorganisms are destroyed in the process of

sterilization

which type of imaging technique is storage phosphor imaging

indirect digital imaging

which type of imagining technique produces the image on the sensor, digitizes and then transmits to the computer?

direct imaging

which type of imaging is most often used when planning an implant surgery?

computed tomography

all of the following are part of direct digital imaging systems EXCEPT

duplicating film

which of the following systems is a scanner used after the x-rays are exposed?

indirect digital imaging system

all of the following are true about 3-D imaging systems EXCEPT

using standard periapical film

which of the following radiology techniques is used mainly to diagnose TMJ disease?

magnetic resonance device (MRI)

the electrons that make up the silicon charge-coupled device (CCD) can be visualized as being divided into an arrangement of blocks or picture elements know as

pixels

exposure time is _______ than the required for conventional radiographs

50% less

cone-beam technology:

provides digital information for reconstruction of the image via computer

the radiographic principle of imaging one section or layer of the body while blurring images from other areas is called:

tomography

a reverse smile line is seen on a panoramic radiograph if the patients:

chin is tipped up

an exaggerated smile line is seen on the panoramic image if the patients:

chine is tipped down

which of the following film area would you be able to identify the inverted Y pattern?

maxillary cuspid

which of the following film area would you be able to identify the tuberosity?

maxillary molar

which of the following radiographic image shows the clinical crown, inter proximal spaces and alveolar crest?

bitewing