"THINK" Before You Order: Multidisciplinary Initiative to Reduce Unnecessary Lab Testing.

Inappropriate daily lab testing can have adverse effects on patients, including anemia, pain, and interruption of sleep. We implemented a student-led, multifaceted intervention featuring clinician education, publicity campaign, gamification, and system changes, including a novel nurse-driven protocol to reduce unnecessary daily lab testing in a teaching hospital. We applied a quasi-experimental interrupted time series design with a segmented regression analysis to estimate changes before and after our 14-month intervention with a comparison to a control surgical unit. There was an increasing trend in the baseline period, which was mitigated by the intervention (postintervention effect estimate -0.04 labs per patient day/month, p < .05), which was not seen in the control unit. Estimated cost savings was $94,269 ($6,734/month). A student-led, multidisciplinary campaign involving nurse-driven pathway, education, publicity, gamification, and system changes was effective in reducing daily lab testing.