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Flashcards in Radiography Deck (23):
0

When were x rays discovered?

1895

1

What does a rectangular collimator do?

Reduces patient dose up to 50%

2

How many mSv are in 2 bite wings?

0.002 mSv

3

What year did the ionising radiation regulation act come into place?

1999

4

What of the annual dose of mSv?

6msv

5

What year did IRMER come into force?

2000

6

What is an RPA

Radiation protection advisor
Expert able to give advice on protection

7

What is an RPS

Radiation protection supervisor
Someone within the practice
Ensure compliance with local rules

8

How often is the X-ray equipment maintained?

Every 3 years

9

What is a lateral oblique xray

Half of the face/jaw

10

What are the three basic components of a film?

Base
Emulsion
Super coat

11

Components of x ray packet?

Waterproof jacket
Black paper
Film
Black paper
Lead foil
Waterproof jacket

12

What is developer?

Alkaline

13

What is fixer?

Acidic

14

How should films be stored?

Upright

15

What is grade 1?

Excellent

16

What is grade 2?

Diagnostically unacceptable, but still able to use

17

What is grade 3?

Unacceptable need to retake

18

What is a black line on the radiograph caused by?

Poor handling

19

What is the yellowish/brown discloured fault?

Insufficient rinsing/exhausted solution

20

What is the result of a fogged film?

Light exposure

21

How is a double image caused?

Re exposure

22

What is the purpose of an intensifying screen?

Reduces x ray dose to the patient