Preventing Infection in Sink Splash Zones

Handwashing sinks in healthcare facilities pose infection control challenges, bringing harmful bacteria like Pseudomonas aeruginosa and nontuberculous mycobacteria close to patients and staff. Surprisingly, handwashing accounts for only 4% of sink-related activities, while others involve medical care, patient nutrition, and environmental cleaning.

The splash zone extends about three feet from the sink, where water droplets can contaminate nearby objects.

The Centers for Medicare and Medicaid Services (CMS) advises against preparing medications or storing supplies within this zone. Contaminated sink areas have been linked to outbreaks, such as bloodstream infections caused by improper IV flush preparation near sinks.

To minimize risks, facilities should implement simple yet effective changes:

• Provide single-use toothbrushes to patients daily.

• Ensure caregivers avoid using countertops near sinks for sterile prep.

• Use mobile, disinfected carts instead of placing supplies near sinks.

• Encourage keeping bathroom doors closed when flushing.

  
  

By reducing sink-related contamination, these steps also help prevent urinary tract infections (UTIs), particularly in catheterized patients. Bacteria from splashed water can reach medical equipment, catheters, or hands, increasing UTI risks. Implementing low-splash sinks, UV sanitation, and automatic disinfectant systems further enhances infection prevention. Proactive protocols and awareness help reduce contamination risks and improve patient safety.

Hicks, J. D. (2024, February 8). Infection control in the splash zone. Healthcare Facilities Today. https://www.healthcarefacilitiestoday.com/posts/Infection-Control-in-the-Splash-Zone--29804