Legislation And Principles Of Radiography W1

Question 1

4 properties of X-Rays:

Answer 1

1. Invisible
2. Cumulative
3. Latent effect
4. Painless

Question 2

Suggest three harmful effect of X-Rays:

Answer 2

1. Somatic effects
2. Carcinogenic effects
3. Genetic effects

Question 3

Define: somatic effects

Answer 3

Direct changes to tissue soon after exposure (burns, hair loss).

Question 4

Define: carcinogenic effects

Answer 4

Changes in tissues to something malignant, potentially develop to diseases such as leukaemia.

Question 5

Define: genetic effects

Answer 5

Damage to gonads, causing genetic mutations in the cells.

Question 6

Suggest three safety measures in reducing personnel exposure:

Answer 6

1. 2metre rule (primary beam poses the greatest risk).
2. Avoid manual restraint (opt for positioning aids).
3. Use of lead protection (protects against scatter radiation).

Question 7

What are some restrictions?

Answer 7

• under 16 = not allowed to participate
• pregnant = not allowed to participate
• advised not to by GP
• general public

Question 8

What is a dosimeter and it’s storage requirements?

Answer 8

• must be worn if involved in radiography
• store out of direct sunlight and sources of radiation

Question 9

When should a lead apron/gown be worn, what does it protect you against, and how should it be stored?

Answer 9

• worn in X-Ray room, and when machine switched on
• protects against scatter radiation
• must be hung up to prevent the lead breaking

Question 10

What is the minimum lead thickness?

Answer 10

0.25mm

Question 11

Recommended lead for thyroid protectors?

Answer 11

0.5mm

Question 12

What do thyroid protectors protect?

Answer 12

They protect the thyroid gland, as they’re vulnerable to harmful effects of radiation.

Question 13

Records of radiography safety checks must be kept for?

Answer 13

2 years

Question 14

Minimum lead thickness for sleeves and gloves?

Answer 14

0.35mm

Question 15

Suggest 5 pieces of legislation relevant to radiography:

Answer 15

1. Ionising radiation regulations 2017
2. Health and safety at work act 1974
3. Environmental protection act 1990
4. COSHH
5. RIDDOR

Question 16

Suggest 3 requirements for practices in regards to radiography

Answer 16

1. Appoint an RPS and an RPA
2. Minimise the number of radio graphic procedures conducted.
3. Records of thorough safety checks in radiography PPE must be kept for 2 years

Question 17

What does RPS stand for?

Answer 17

Radiation Protection Supervisor

Question 18

What is the role of an RPS and who can become one?

Answer 18

They’re responsible for ensuring that all local rules and systems of work are implemented and IRR adhered to.
A listed vet nurse or vet can become one.

Question 19

What does RPA stand for?

Answer 19

Radiation Protection Officer

Question 20

What is the role of an RPA and who can become one?

Answer 20

Involved in establishing the local rules for the practice.
An external person appointed by the practice.