Nudging to select single-lumen over multiple-lumen peripherally inserted central catheters (PICCs) in a large safety net system.

We successfully increased single-lumen PICC utilization across all 11 safety net hospitals. This expands on previous work on improving single-lumen PICC use and use of default nudges in large, resource-limited settings. Further study is needed to examine variation among provider types, specialties, and hospitals.