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Metformin might reduce insulin requirement and improve glycaemia in patients with type 1 diabetes, but whether it has cardiovascular benefits is unknown. We aimed to investigate whether metformin treatment (added to titrated insulin therapy) reduced atherosclerosis, as measured by progression of common carotid artery intima-media thickness (cIMT), in adults with type 1 diabetes at increased risk for cardiovascular disease.

Performance of intravenous (iv) injections as part of radiographer role development has become fundamental to the operational management of diagnostic imaging departments in the UK. Through discussion of appropriate areas, this review aims to highlight current issues pertaining to iv injection. More importantly, the framework described could be transposed to other existing or future areas of role development. Within a validated system of delegation, utilization of radiographers' skills in an expanded role improves allocation of resources and may increase radiographer motivation and provide career enhancement. Professional body accreditation as well as civil and employment law provide clear guidelines on medicolegal implications, valid consent and accountability. Implementation of an iv administration policy, based on Royal College of Radiologists guidelines, includes proper delegation of duties and safe administration of substances. This should help ensure acceptance of vicarious liability by an employer. Failure to adhere to these established guidelines could leave employers and radiographers vulnerable to medicolegal action. Furthermore, evaluation of radiographer performance, facilitated by clinical governance and departmental audits, should ensure effective and safe practice whilst minimizing associated risks. Evidence-based radiography will provide the necessary drive for future changes in practice as well as further expansion of the radiographer's role.

Performance of intravenous (iv) injections as part of radiographer role development has become fundamental to the operational management of diagnostic imaging departments in the UK. Through discussion of appropriate areas, this review aims to highlight current issues pertaining to iv injection. More importantly, the framework described could be transposed to other existing or future areas of role development. Within a validated system of delegation, utilization of radiographers' skills in an expanded role improves allocation of resources and may increase radiographer motivation and provide career enhancement. Professional body accreditation as well as civil and employment law provide clear guidelines on medicolegal implications, valid consent and accountability. Implementation of an iv administration policy, based on Royal College of Radiologists guidelines, includes proper delegation of duties and safe administration of substances. This should help ensure acceptance of vicarious liability by an employer. Failure to adhere to these established guidelines could leave employers and radiographers vulnerable to medicolegal action. Furthermore, evaluation of radiographer performance, facilitated by clinical governance and departmental audits, should ensure effective and safe practice whilst minimizing associated risks. Evidence-based radiography will provide the necessary drive for future changes in practice as well as further expansion of the radiographer's role.