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Practice
Green ICU Initiative: Building a Sustainable Critical Care Environment

By Aswathy Nair, BSN, RN-BC, CVRN, CCRN RN III Critical Care, Houston Methodist West

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Objective
The Green ICU Initiative was established to promote an eco-friendly environment within the ICU. It focuses on reducing supply waste, reprocessing patient care items and encouraging sustainable practices — without compromising patient care.
Key Actions
Formation of a Green Team: A key step was forming a Green Team to identify issues and develop an action plan.
Weekly Audits: We collected supplies from discharged patient rooms. After collaborating with Infection Control, Quality and Supply Chain teams, we sorted items into those that could be returned and those that could not. Weekly audits tracked progress before and after the intervention.
Interventions: Interventions included removing underused supply carts from outside patient rooms, which posed contamination risks. We labeled supply room items by price (green, yellow, red) to encourage mindful use. Small bins — funded through a grant — were placed in each room for organized storage.
We also reprocessed patient care items such as pulse oximeters and disposable EKG leads, while also adding collection containers in every room to boost return rates.
Staff Involvement: To engage staff, we organized a relay race between day and night shifts to return supplies to their proper locations. Education and reminders have continued during huddles and staff meetings, and we’ve seen a noticeable improvement.
This initiative successfully reduced the amount of waste produced by the ICU from $5,094.15 to $2,197.02. These small but impactful interventions have created a more sustainable ICU environment, with measurable reductions in supply waste.
Results
Pre-Intervention
Total Waste: $5,094.15
Unit Savings: $2,680.21
Post-Intervention
Total Waste: $2,197.02
Unit Savings: $930.03