![]() 7 Thus, evaluations of patients' and nurses' experiences of such interventions are important in determining the acceptability and likely sustainability of such interventions. ![]() Introducing ‘Do not interrupt’ interventions has considerable work process and resource implications and may also result in unintended consequences. The review identified key methodological limitations of previous studies including no randomised controlled trials to assess intervention effectiveness a reliance on self-reported outcome measures which are subject to bias small sample sizes limited detail regarding the nature of interruptions recorded (ie, whether they were related to the medication task or not) a failure to define ‘interruptions’ an absence of inter-rater reliability measurement when multiple observers were used observers who were not independent from the study sites and limited statistical analyses including a failure to account for clustering by ward. A systematic review 4 of interventions designed to reduce interruptions to nurses during medication administration however demonstrated that despite increasing reports of such interventions there is limited evidence of their effectiveness to reduce interruptions or MAEs. ![]() One study demonstrated a direct positive association between interruptions to nurses and the frequency and severity of MAEs in two hospitals, 1 adding weight to the argument that reducing interruptions may also reduce error rates. Thus by reducing interruptions, these interventions are designed to result in fewer MAEs and less harm to patients. 4–6 These interventions are based on an underlying assumption that interruptions are significantly associated with medication administration errors (MAEs). ![]() 1–3 Over the last decade, there has been a steady increase in the number of studies reporting interventions designed to reduce interruptions to nurses during the preparation and administration of medications. In any one hospital, thousands of medications are administered to patients each day.
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