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DANB Final RHS Exam Flashcards | StudBud
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DANB Final RHS Exam
DANB Final RHS Exam
50 terms
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Flashcards
50 cards
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Practice quiz
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Questions
50
Answers
1
Film is best stored in an area that is
Cool and dry
Humid
Exposed to radiation
Hot
2
Developer solution should be changed__ Fixer solution
Twice as often as
More often then
At the same time as
Less often then
3
The restrainer stops the development of
Expose crystals only
Expose crystals are more than unexposed crystals
Unexposed crystals only
Unexposed crystals are more than expose crystals
4
The___ Activate the machine to produce x-rays
Exposure light
Control devicese
On/off switch
Exposure button
5
Deposits form on the inside walls of the insert tanks from interaction between mineral salts in water and
Acetic acid
Acetic acid
Hydroquinone
Carbonate
6
To conduct a filmscreen contact test the wire mesh test object is placed
On the side of the film closest to the two pad within the loaded cassette
Over the end of the PID
On top of loaded cassette
On the side of the film farthest from the truth head within
7
Informed consent
Is waved at the patient is a minor
Doesn’t require that patient receive any information
Must be in language that the patient can readily understand
Doesn’t require patients have their questions answered
8
Which of the following occurrences during and after x-ray film exposure reduces amount of radiation
Retakes
Proper film processing
Nondiagnostic films
Artifacts caused by improper film handling
9
Eight thermal meter may be clipped to the side of the__ Manual processing
Developer tank
Fixer tank
Master tank
Both insert tanks
10
Sodium sulfite is the__ Used in fixer solution
Fixing agent
Acidifier
Hardening agent
Preservative
11
Which of the following would be the best choice for cleaning the master of tanks
A liquid type abrasive cleanser
A solution of Hydrochloric acid and water
A powder type abrasive cleanser
Plain tap-water
12
The temperatures of the developer and fixer solutions are controlled by the
Use of mixing valve
Aquarium type heaters in the insert tank
Ambient room temperature
Chemical reaction that occurs when they are mixed
13
If the film Clears in__ Minutes the chemistry is of adequate strength
Six
Eight
Two
Four
14
___is an example of a patient protection technique used before x-ray exposure
Thyroid collar
Proper film processing
Lead apron
Proper prescribing of radiographs
15
Radiopaque refers to the portion of processed radiograph that is
Within the plastic base
White
Black
Gray
16
Which of the following statements is true
It is advised to keep patient radio radiographs in a separate file
Must include documentation of the number and type of radiograph exposed
Radiographs are an optional rather than integrinal part of the record
Radiographs may be discarded went outdated
17
The label side of the dental film packet is
Color coded to distinguish between 1 film & 2 film Packets and film speed
Solid white
Should face the Tube head when placed in the mouth
Has a raise bump in one corner that corresponds to the identification dot
18
Which of the following types of film exhibit the bony and soft tissue areas of the facial profile
Panoramic
PA
Cephalometric
BW
19
During processing a chemical reaction occurs and the halide portion of the__ silver halide Crystals is removed
Unexposed energized
Expose unenergized
Exposed energized
Unexposed unenergized
20
Hey step wedge reveals the radiographs taken at a higher KVP will have __vs Taken at a lower KVP
Long scale contrast
Many areas of black and white
High contrast
Only to densities
21
The film emulsion is:
Made of polyester plastic
Opaque to block out the passage of light
Attached to one side of the film
Attached to both sides of the film
22
The dental radiography requires which of the following to perform dental radiographic procedures
Sufficient knowledge
Technical skills
None of these
Sufficient knowledge and technical skills
23
Which of the following is a component of fixer solution but not developer solution
Potassium alum
Sodium carbonate
Potassium bromide
Hydroquinone
24
The purpose of the preservative is to prevent the developer solution from oxidizing in the presence of
Air
Moisture
Silver halide
Silver bromide
25
Which of the following changes will result in a radiograph with reduced density
Increasing the MA
Increasing exposure time
Increasing the KVP
Increasing the subject thickness
26
___ Generates a black tones and the sharp contrast of the radiographic image
Elon
Sodium sulfite
Sodium carbonate
Hydroquinone
27
Which type of PID is most effective in reducing scatter radiation to patient?
Conical
16in round
8 in rectangle
16in rectangle
28
Antiseptic is
The use of chemical or physical procedure inhibit or destroy pathogens
The absence of pathogens or disease causing microorganisms
A substance that inhibits growth of bacteria
The act of sterilizing
29
Radiographs enable the dental professional to see__ Conditions that may otherwise go undetected
Many
Rare
Occasional common
Occasional
30
Which of the following areas would appear the most radiolucent on a dental radiograph
Air space
Amalgam
composite
Enamel
31
__ Is defined as the absence of pathogens or disease causing microorganism
Anti-infective
Asepsis
Anabiotic
Antiseptic
32
Which type of silver halide crystals are removed from the film
Unexposed energized
Exposed unenergized
Unexposed unenergized
Exposed energized
33
The cleaning test is used to monitor
Processing speed
Developer strength
Fixer strength
Water bath temp
34
The purpose of the hardening agent is to harden and shrink the
Gelatin in the film in Emulsion
Exposed silver halide crystals
Plastic film base
Unexposed silver halide crystals
35
The purpose of __ Is to chemically reduce the expose energize silver how lied crystals into black metallic silver
Washing
Fixer
Rinsing
Developer
36
On some dental x-ray machines only the ___can be altered. The other perimeters are present by manufacturer
PID length
Exposure time
kVp peak
mA
37
The extension arm allows for positioning of the tubehead
True
False
38
Normal use of processing chemistry to defined as__ Intraoral films per day
18
60
30
50
39
An oral exam limits the practitioner to knowledge of what is seen clinically but is unable to see
Erupted molars
Inter-proximal caries
Infected teeth
All of these can be seen orally
40
The primary factor that limits the size of the tungsten target is:
Limited kinetic energy and electrons
limited kinetic energy and photons
Heat production
The cost of the materials
41
The collimate restricts size and shape of x-ray bean and is never round
True
False
42
Which of the following intraoral film holders as a disposable Styrofoam bite-block:
EEZE grip
Stabe bite-block
Uni-bite
EndoRay
43
Which of the following chemicals is the accelerator in developer solution
Sodium sulfite
Hydroquinone
Sodium carbonate
Elon
44
___speed film is the fastest available.
F
AC
D
E
45
Acronym for permitted LIFETIME accumulated dose
MRD-Minimum radiological dose
MAD-Maximum accumulated dose
MPD-Maximum permissible does
MSR-maximum series of radiography
46
The consumer patient radiation health and safety act
Outlines requirements for the safe use of extra equipment
Establishes guidelines for proper maintenance of x-ray equipment
Requires a person taking x-rays to be properly trained
All of the above
47
The master think it’s filled with
Temperature controlled water
Coldwater
Developer
Fixer
48
Major advantage of automatic film processing versus manual film processing is
More sophisticated equipment is used
Water temp is manually controlled
Time is manually controlled
Less processing time is required
49
The current MPD for an occupationally exposed pregnant woman is the same as that for
And occupationally exposed child under 18
An occupationally exposed male
An unoccupationally exposed person
And occupationally exposed nonpregnant woman
50
Radiolucent refers to the portion of a process radiograph that is
Gray
Black
White
Coded with an emulsion
