Changing culture: An intervention to improve blood culture quality in the emergency department.

OBJECTIVE: Blood cultures (BCs) remain a key investigation in ED patients at risk of bacteraemia. The aim of this study was to assess the effect of a multi-modal, nursing-led intervention to improve the quality of BCs in the ED, in terms of single culture, underfilling and contamination rates. METHOD: The present study was conducted in the ED of a large urban tertiary referral hospital. The study included four phases: pre-intervention, intervention, post-intervention and sustainability periods. A multi-modal intervention to improve BC quality consisting small group education, posters, brief educational videos, social media presence, quality feedback, small group/individual mentoring and availability of BC collection kits was designed and delivered by two senior ED nurses over 7 weeks. Study data comprised rates of single, underfilled and contaminated cultures in each of three 18-week periods: pre-intervention (baseline), post-intervention and sustainability. RESULTS: Over the study period 4908 BC sets were collected during 2347 episodes of care in the ED. Single culture sets reduced from 56.2% in the pre-intervention period to 22.8% post-intervention (P < 0.01) and 18.8% in the sustainability period (P < 0.01). Underfilled bottle rates were also significantly reduced (aerobic 52.8% pre-intervention to 19.2% post-intervention, 18.8% sustainability, anaerobic 46.8% pre-intervention to 23.3% post-intervention, 23.8% sustainability). Skin contaminants were grown from 3.7% of BC sets in the pre-intervention period, improving to 1.5% in the post-intervention period (P < 0.001) and 2.1% in the sustainability period (P = 0.03). Total volume of blood cultured was significantly associated with diagnosis of bacteraemia. CONCLUSION: Significant improvements in BC quality are possible with nursing-based interventions in the ED.

Benchmarking blood culture quality in the emergency department: Contamination, single sets and positivity.

OBJECTIVE: To benchmark blood culture (BC) quality in an Australian ED, explore groups at risk of suboptimal BC collection, and identify potential areas for improvement. METHODS: This retrospective observational study was undertaken to benchmark quality of BCs in a tertiary adult ED in terms of number of BC sets per patient and proportion of patients with false positive (contaminated) BC results. RESULTS: A single BC set was taken for 55% of patients, with lower acuity patients being more likely to have a single BC set taken. BC false positives occurred in 3.4% of presentations, with higher frequency in some critically unwell patient groups. The true positive BC rate was 10.9%, with pathogens most frequently isolated in older patients, those with a haematological condition or genitourinary source, and those admitted to inpatient wards. Hospital length of stay did not differ between patients with negative and patients with false positive BCs. CONCLUSIONS: BC quality standards in the ED such as false positive rate <3% and single culture rate <20% are required to facilitate benchmarking and prospective quality improvement. The sensitivity and specificity of this common and critical test can be improved. Patient subgroups associated with poor-quality BC collection can be identified and should be a focus of future work.

The documentation of pain intensity and its influences on care in the emergency department.

BACKGROUND: Assessment and reassessment of self reported pain intensity scores form the basis of acute pain care in the emergency deprtment (ED), however are frequently undocumented. The effects of not documenting pain assessments on time to first analgesic medication (TTA) and ED length of stay (EDLOS) are unknown. METHODS: This is a retrospective cross-sectional study to investigate the association between documented evidence of pain intensity scores, TTA and EDLOS in the ED. It also examined the factors associated with the documentation of pain intensity scores. Univariate and multivariable modelling was used on a random sample of presentations. RESULTS: There were no statistically significant associations between the documented evidence of pain intensity scores and TTA or EDLOS. Modelling suggests that patients were less likely to have documented evidence of pain intensity scores if they were male, were streamed to the fast-track treatment area, had a lower burden of co-morbidities, or when the general departmental workload was increased. CONCLUSIONS: The documentation of pain intensity scores was not associated with TTA or EDLOS. Some demographic, illness and workload factors are associated with the lack of pain intensity score documentation, however, the effect on patients outcomes needs further investigation.