Impact of aromatherapy on anxiety among ICU nurses: A randomized, blinded, placebo-controlled trial.

PURPOSE: The purpose of this study was to examine the effect of aromatherapy with an essential oil blend containing lavender, bergamot, ylangylang, and sweet orange, compared with placebo, on perceptions of anxiety in ICU RNs. METHODS: Nurses recruited from six adult ICUs and a neonatal ICU participated in this blinded, randomized, placebo-controlled study, which took place over a 30-day intervention period. RESULTS: Although there were no statistically significant changes in anxiety pre- to postintervention or between the intervention and placebo groups, there were also no adverse events or untoward effects. CONCLUSION: The results of this study may support aromatherapy as an evidence-based strategy to reduce anxiety in ICU nurses. Additional research is needed.