Are current clinical guidelines on the use of Peripheral Intravenous Cannula for blood draws supported by evidence? An organizational case study

AIM: To examine the quality of evidence used to inform health policies. Policies on peripheral intravenous cannulas were used as exemplars. DESIGN: An organizational case study design was used, using the STROBE reporting guidelines. METHODS: Policy guidelines were sourced between June and September 2018 from health departments in Australia. Seven documents were compared regarding intravenous cannula dwell times and blood collection use. Evidence used in the documents was critiqued using assessment guideline from the Oxford Centre for Evidence Based Medicine. RESULTS: Large variations exist between policies regarding blood sampling and dwell time. Evidence used a variety of sources. Few references received an A evidence rating and policies differed in their interpretation of evidence.