Radiology week 2

When discussing film processing, the term Reduction refers to:

A chemical reaction where the halide portion of the exposed silver halide crystals are removed

What preparations can be done before washing hands and donning gloves when taking radiographs?

Adjusting the patient chair and asking the patient to remove their glasses

Weak radiation leaving the tube during exposure is prevented by the use of a/an:

Aluminum Filter

An ion is:

An atom that has lost electrions

Which of following is used to sterilize beam alignment devices?

Autoclave

Which of the following is considered a semi-critical instrument?

Beam Alignment Device

Which of the following is an indication for hand washing?

Before leaving the dental operatory Only when hands are visibly soiled Before donning gloves and immediately following glove removal Correct! BOTH A & C!!!!!

In dentistry, only products that are registered with the ______ as hospital disinfectants with tuberculocidal claims should be used to disinfect treatment areas.

EPA

What is the negatively charged particle that is responsible for producing radiographs?

Electron

What area(s) of the treatment room should be covered with a plastic barrier to reduce chance of disease transmission when taking radiographs?

Exposure Button Tube Head Head Rest Correct! ALL OF THE ABOVE

The dental assistant should wear gloves when transporting exposed films to the processing room.

False

What type of radiation can be prevented and eliminated?

Leakage Radiation

The cathode is the:

Negative Terminal

The purpose of the fixing agent is to:

Remove all unexposed and undeveloped silver halide crystals from the film emulsion

The beam of radiation which is responsible for exposing the x-ray film is the:

Secondary

The term used to describe the process that inactivates all forms of microbial life including bacterial spores, viruses, bacteria, and fungi:

Sterilization

How is pathogen transmission reduced when using a digital receptor to take a radiograph?

The use of a disposable plastic barrier

If the dental radiographer is interrupted and must leave the room during exposure of radiographs:

They must remove gloves and wash their hands before leaving the room. Then wash hands and don gloves upon returning to the room.

Which of the following describes the use of a filter in a dental tube head?

To remove low energy x-rays

After a patient has been dismissed, dental unit surfaces and counter tops that may have been contaminated should be cleaned with an EPA-registered ______________________________.

intermediate- level disinfectant

The optimum temperature for development is:

68 Degrees F

The correct steps in manual film processing are:

Development, Rinsing, Fixing, Washing, Drying

In order to be effective, the safelight must be ___ above the working surface.

4 Feet

The leaded-glass housing of the vacuum tube prevents x-rays from escaping. There is a window in the leaded-glass that allows x-rays travel toward the PID.

Both statements are true

All contaminated items must be disposed of

Following local and state environment regulations While still wearing gloves in the presence of the patient Correct! ALL OF THE ABOVE!!!!

What component of the tube head prevents overheating by absorbing the heat that is created when x-rays are produced?

Insulating Oil

What component of the vacuum tube produces the electrons that are needed to create x-ray beams?

Tungsten Filament

Besides gamma rays, what additional radiation wave from the EMR spectrum is considered harmful to tissue due to its wavelength?

Ultra-violet

The part of the x-ray machine that produces the radiation is the:

Vacuum Tube

After removing an exposed film from the patient's mouth, the first thing you should do is:

Wipe saliva from the film