A Time-Driven Activity-Based Costing Analysis of Emergency Department Scribes

Abstract

OBJECTIVE: To apply time-driven activity-based costing (TDABC) methodology to determine emergency medicine physician documentation costs with and without scribes. METHODS: This was a prospective observation cohort study in a large academic emergency department. Two research assistants with experience in physician-scribe interactions and ED workflow shadowed attending physicians for a total of 64 hours in the adult emergency department. A tablet-based time recorded was used to obtain estimates for physician documentation time on both control (no scribe) and intervention (scribe) shifts. RESULTS: Control shifts yielded approximately 3 hours of documentation time per 8 hours of clinical time (2 hours during the shift, 1 hour following the shift). When paired with a scribe, attending physician documentation decreased to 1 hour and 45 minutes during a shift and 15 minutes of postshift documentation. The physician cost estimate for documentation without and with a scribe is 644 and 488 dollars, respectively. CONCLUSIONS: When one looks at the time saved by the provider, scribes appear to be a financially sound decision. TDABC methodology demonstrated that scribes afford a cost-effective solution to ED clinical documentation and serves as a tool to develop an accurate costing system, based on actual resources and processes, and allowed for understanding of resource use at a more granular level.

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