Produce computed tomography (ct) scanning images for diagnostic purposes
Overview
This standard is concerned with the use of computed tomography (CT) equipment and procedures to produce images for diagnostic purposes. It includes selecting the most appropriate scan protocol depending on the individual's condition and clinical history. Key people are those involved in the individual's care and others involved in provision of services. Users of this standard will need to ensure that practice reflects
Performance criteria
You must be able to:
apply standard precautions for infection control and other appropriate
health and safety measures
- ensure all necessary preparations have been made by the individual
and staff before starting the procedure
check and prepare the equipment required for the examination
ensure the environment is conducive to maintaining the privacy and
dignity of the individual
- check the identification details before commencing the procedure in
accordance with local policies and procedures
- introduce yourself and other members of staff present during the
examination
- communicate with the individual / key people to facilitate their
understanding of and co-operation with the examination
- establish the individuals capacity to understand the procedure with
the help of key people if necessary
- obtain valid consent for the procedure in accordance with national
and local guidelines
respect the individuals privacy, dignity, beliefs and decisions
clearly explain the procedure and possible outcomes, including risk,
benefits and limitations
- check individuals of child-bearing potential for pregnancy or
possible pregnancy, if appropriate to the examination, and take action
in accordance with local protocols
- confirm the status of key people before the examination and, where
their presence is required, adhering to local guidelines
- enter the identification details of the individual into the CT scanner
or, if previously entered, check for accuracy
- accurately select all parameters required for the scan according to
local scan protocols for the procedure, assess any required
modifications and take appropriate action
- position the individual and adjust their clothing according to the
protocols for the examination to be performed in a manner which allows
an optimal outcome to be achieved while:
16.1 recognising the individuals need to retain their dignity and self
respect
16.2 ensuring their comfort as far as possible
16.3 preventing the appearance of artefacts
- check the room prior to making the exposure to ensure that only
essential, protected persons remain with the individual, that all local
protocols have been adhered to and take appropriate action if this does
not occur
- commence the scan and monitor the individuals condition,
compliance and well-being throughout the procedure and take action
appropriate to their needs
- view the images on completion of the scan to ensure they are
technically acceptable and suitable for diagnostic purposes
- create multi-planar reformats (MPR) from the relevant datasets as
appropriate
- review images for clinical acceptability, take appropriate action,
including further imaging if required
- monitor and record the individuals exposure to ionising radiation
throughout the procedure according to local protocols
- following the preliminary imaging examination, inform the
appropriate person if an abnormality is observed on the image which is
likely to require further investigation or treatment
- provide the individual with information relating to the procedure and
aftercare where necessary
explain the process for obtaining results
optimise, record, collate and prepare appropriate information,
documentation and images for transfer or storage according to local
protocols
- verify that the images have arrived/been stored according to local
protocols
- recognise where help or advice is required and obtain this from
appropriate sources
Knowledge and Understanding
You need to know and understand:
legal, organisational and policy requirements relevant to your role,
the role of others in your organisation and the activities being
carried out
- the relevant national and local standards, guidelines, policies and
procedures that are available and how and when they should be
accessed
- the importance of respecting individuals culture, privacy, dignity,
wishes, beliefs and decisions
- the limitations of your own knowledge and experience and the
importance of operating within your scope of practice
the roles and responsibilities of other team members
the importance of obtaining valid consent in line with national and
local guidelines
- clinical appropriateness of the examination request and the action
to take when the request is not appropriate
- the gross surface and cross-sectional anatomy of the areas to be
scanned
the relevant physiology of the areas to be scanned
the common normal variants and their appearance on CT images
common pathologies of the areas to be scanned and their
appearance on CT images
- the medical terminology relevant to the examination including
abbreviations
- contra-indications to CT scanning including the clinical
implications of any allergy relevant to the examination
manifestations of individuals physical and emotional status
when additional images are required to aid diagnosis and to
enhance the examination and the process for justification
production, interactions and properties of x-rays
the physical processes involved in the production of CT images,
optimisation, scanning techniques and protocols
- the harmful effects of radiation to the human body and use of
radiation protection equipment
- the ways in which CT images can be captured, processed and
permanently stored
- how to adapt communication styles, ask questions, and listen
carefully in ways which are appropriate for the needs of the
individual
- methods of communicating difficult and complex information to
individuals and key people
- the importance of providing individuals and key people with
opportunities to ask questions and increase their understanding
- the information that should be given to individuals before, during
and on completion of the examination
the physical principles of CT scanning
alternative imaging examinations that may be employed alongside
CT scanning
the technical and diagnostic quality requirements of the image
artefacts on images - their causes and avoidance strategies
factors which influence the decision to repeat images or take
additional CT images
- the operation, safe use and positioning of equipment that
supports, works or links with the CT scan protocol
- the use of quality assurance equipment, recording results and
taking appropriate action
- equipment capabilities, limitations and routine maintenance
including the quality control processes required by the operator
- the importance of timely equipment fault recognition and local
procedures for reporting these
- preparation of the environment, individual and equipment for CT
Scanning
- positioning of the individual and equipment relevant to
examination being performed
- procedures relating to recording, collating and preparing
appropriate information, documentation and images for transfer or
storage according to local protocols
- how to keep full, accurate and clear records in line with
organisational procedures
Scope/range
Scope Performance
Scope Knowledge
Values
Behaviours
Skills
Glossary
Links To Other NOS
External Links
This standard links with the following dimension within the NHS
Knowledge and Skills Framework (October 2004):
Dimension: HWB6 Assessment and treatment planning