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Dental Nursing > Unit 307 - Radiography > Flashcards

Unit 307 - Radiography Flashcards

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1
Q

ionisation is

A

splitting an atom into two

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2
Q

splitting an atom into two is known as

A

ionisation

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3
Q

somatic effects are

A

direct to the individual

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4
Q

effects which are direct to the invidivual are known as

A

somatic effects

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5
Q

genetic effects are

A

effects passed down from the previous generation

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6
Q

effects passed down from the previous generation are known as

A

genetic effects

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7
Q

teratogenic effects

A

effect on the offsprings offspring

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8
Q

an effect on the offsprings offspring is known as

A

teratogenic effect

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9
Q

acute effects are

A

effects which have immediate onset

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10
Q

effects with immediate onset are called

A

acute effects

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11
Q

stochastic effect

A

effects that happen by chance

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12
Q

effects that happen by chancce

A

stochastic effects

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13
Q

chronic effects are

A

where the symptoms take a long time to appear

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14
Q

deterministic effect

A

effect which can be determined definitely

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15
Q

RPS stands for

A

radiation protection supervisor (who is on site)

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16
Q

RPA stands for

A

radiation protection advisor (an external body)

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17
Q

IRR stands for

A

ionising radiation regulations

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18
Q

IR(ME)R stands for

A

ionising radiation regulations for medical exposures

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19
Q

personal dosimetry badge is

A

worn to measure the level of radiation exposure

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20
Q

this is worn to measure the dosage of radiation exposure

A

personal dosimetry badge

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21
Q

personal dosimetry badge should be worn when

A

50 OPTs and/or 100 intraoral xrays are taken each week

22
Q

NRPB stands for

A

national radiation protection board

23
Q

OPT/OPG stands for

A

orthopantomograph

24
Q

a step wedge or coin test would be used for

A

a test xray

25
Q

a grade 2 xray is

A

diagnostically acceptable

26
Q
A
27
Q

effects from radiation exposure in large dosage in a short time (eg. Hiroshima) are known as

A

acute effects

28
Q

symptoms of acute radiation effects (4)

A

vomiting, skin burns, loss of hair or changes to blood cells

29
Q

radiation effects which can be from up to 20 years and are impossible to determine the cause

A

chronic effects

30
Q

radiation effects which can be directly related to a cause (eg. sunburn)

A

somatic deterministic effects

31
Q

chronic radiation effects

A

can be from up to 20 yrs of exposure history and are impossible to determine the cause

32
Q

somatic deterministic radiation effects

A

radiation effects which can be directly linked to a cause (eg. sunburn)

33
Q

effects of radiography which can lead to death or deformity of foetus are known as

A

genetic stochastic effects

34
Q

example of genetic stochastic radiation effects

A

death or deformity of foetus

35
Q

somatic stochastic radiation effects are

A

effects which can be related to a cause but not definitely (eg. cancer, increased exposure to radiation due to job or unknown exposure)

36
Q

radiation effects which can be determined but are not clear in relation to the cause are known as

A

somatic stochastic effects

37
Q

time and temperature which radipgraphs should be exposed to fixer and developer solutions

A

3-4 minutes at 18-24degrees celcius

38
Q

solution which chemically reduces the energised ionised silver bromine crystals

A

developing solution

39
Q

solution which removes silver bromide crystals

A

fixer solution

40
Q

failure to rinse crystals from radiograph leads to

A

image going green/brown

41
Q

after being exposed to appropriate solutions, radiograph should be rinsed

A

under running water for 10-15 seconds (as close in temperature as possible to other solutions)

42
Q

periapical xray

A

xray taken of roots

43
Q

bitewing

A

xray taken of crown and partial root

44
Q

occlusal radiograph

A

xray taken of one full arch

45
Q

orthopantomograph (OPG/OPT)

A

xray taken of full dentition

46
Q

lateral oblique xray

A

xray taken from side of jaw

47
Q

cephalostat (lateral projection)

A

xray taken of full jaw, neck and skull

48
Q

how far should the operator stand from the xray tube

A

1.5 meters

49
Q

which speed film should ideally be used to reduce exposure

A

E-F films

50
Q

solid state sensors allow for

A

immediate viewing of xrays and are directly connected to the computer

51
Q

photostimulable phosphur storage plates are used for

A

indirect processing of xrays and must be read/scanned before being loaded onto the computer

52
Q
A

Dental Nursing (10 decks)

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