Another prioritized failure mode was the administration of multiple drugs in a therapeutically suboptimal order (e.g., vesicant drugs not given first). The analysis highlighted that, other than nurses' knowledge and experience, no controls existed against that error. Identified error causes included a lack of clinician consensus around the matter of optimal drug sequencing and the listing of prescribed drugs for administration at any one session in no particular order. Therefore, as counteractive strategies, it was suggested that the unit establish and integrate into its local policy best practice guidelines on drug sequencing, and that medical staff list prescribed drugs in their optimal administration order.