Unit 307 - Radiography

Question 1

ionisation is

Answer 1

splitting an atom into two

Question 2

splitting an atom into two is known as

Answer 2

ionisation

Question 3

somatic effects are

Answer 3

direct to the individual

Question 4

effects which are direct to the invidivual are known as

Answer 4

somatic effects

Question 5

genetic effects are

Answer 5

effects passed down from the previous generation

Question 6

effects passed down from the previous generation are known as

Answer 6

genetic effects

Question 7

teratogenic effects

Answer 7

effect on the offsprings offspring

Question 8

an effect on the offsprings offspring is known as

Answer 8

teratogenic effect

Question 9

acute effects are

Answer 9

effects which have immediate onset

Question 10

effects with immediate onset are called

Answer 10

acute effects

Question 11

stochastic effect

Answer 11

effects that happen by chance

Question 12

effects that happen by chancce

Answer 12

stochastic effects

Question 13

chronic effects are

Answer 13

where the symptoms take a long time to appear

Question 14

deterministic effect

Answer 14

effect which can be determined definitely

Question 15

RPS stands for

Answer 15

radiation protection supervisor (who is on site)

Question 16

RPA stands for

Answer 16

radiation protection advisor (an external body)

Question 17

IRR stands for

Answer 17

ionising radiation regulations

Question 18

IR(ME)R stands for

Answer 18

ionising radiation regulations for medical exposures

Question 19

personal dosimetry badge is

Answer 19

worn to measure the level of radiation exposure

Question 20

this is worn to measure the dosage of radiation exposure

Answer 20

personal dosimetry badge

Question 21

personal dosimetry badge should be worn when

Answer 21

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

Question 22

NRPB stands for

Answer 22

national radiation protection board

Question 23

OPT/OPG stands for

Answer 23

orthopantomograph

Question 24

a step wedge or coin test would be used for

Answer 24

a test xray

Question 25

a grade 2 xray is

Answer 25

diagnostically acceptable

Question 27

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

Answer 27

acute effects

Question 28

symptoms of acute radiation effects (4)

Answer 28

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

Question 29

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

Answer 29

chronic effects

Question 30

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

Answer 30

somatic deterministic effects

Question 31

chronic radiation effects

Answer 31

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

Question 32

somatic deterministic radiation effects

Answer 32

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

Question 33

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

Answer 33

genetic stochastic effects

Question 34

example of genetic stochastic radiation effects

Answer 34

death or deformity of foetus

Question 35

somatic stochastic radiation effects are

Answer 35

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

Question 36

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

Answer 36

somatic stochastic effects

Question 37

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

Answer 37

3-4 minutes at 18-24degrees celcius

Question 38

solution which chemically reduces the energised ionised silver bromine crystals

Answer 38

developing solution

Question 39

solution which removes silver bromide crystals

Answer 39

fixer solution

Question 40

failure to rinse crystals from radiograph leads to

Answer 40

image going green/brown

Question 41

after being exposed to appropriate solutions, radiograph should be rinsed

Answer 41

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

Question 42

periapical xray

Answer 42

xray taken of roots

Question 43

bitewing

Answer 43

xray taken of crown and partial root

Question 44

occlusal radiograph

Answer 44

xray taken of one full arch

Question 45

orthopantomograph (OPG/OPT)

Answer 45

xray taken of full dentition

Question 46

lateral oblique xray

Answer 46

xray taken from side of jaw

Question 47

cephalostat (lateral projection)

Answer 47

xray taken of full jaw, neck and skull

Question 48

how far should the operator stand from the xray tube

Answer 48

1.5 meters

Question 49

which speed film should ideally be used to reduce exposure

Answer 49

E-F films

Question 50

solid state sensors allow for

Answer 50

immediate viewing of xrays and are directly connected to the computer

Question 51

photostimulable phosphur storage plates are used for

Answer 51

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