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RADIATION
PROTECTION - Coggle Diagram
RADIATION
PROTECTION
EXPOSURE
Silent
- invisible
- no senses stimulated
-
Adverse
Effects
Deterministic Effects
related to dose
- vary from -
- simple erythema
to
- significant cell damage
&
- death
Stochlastic Effect
predicted from
probability of occurrence
severity of which
- not dose related
- no threshold level
-
-
LEGISLATION
-
Ionising Radiation
(Medical Exposure)
Regulations 2000
IR(ME)R
Aim
- protect patients undergoing
examination or treatment
-
Employer
eg hospital trust
Referrer
eg Podiatrist
- adequate
&
- correct
information
Practitioner
eg radiologist
- appropriate dose
- justify exposure
Operator
eg radiographer
- authorise
&
- preform exposure
- correct dose optimisation
Protocols
written for
- each deptartment
- procedure
- piece of equipment
Giving reference dose level
Written framework for
- procedures
- maintenance
- quality assurance
- audit
-
IODINATED
CONTRAST
AGENT
General
Adverse
Reactions
May cause
hypersensitivity reactions
susceptible individuals
- asthmatics
- other drug allergies
- previous reactions
Immediate
Ig-E-mediated
hypersensitivity reaction
- within 1 hour
ranges from
- urticaria
- full anaphylaxis
(medical emergency)
Delayed
T-cell mediated
hypersensitivity reaction
- after 1 hour
usually
- erythematous skin rashes
-
-
General
- many investigations
- especially CT
- vascular supply
- benefits v risks