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Context.—Emergency department (ED) overcrowding has reached crisis proportions in the United States. Many hospitals are seeking to identify process reengineering efforts to reduce crowding and ED patient length of stay (LOS).

Objectives.—To investigate the impact of a point-of-care testing (POCT) satellite laboratory in the ED of a large academic medical center.

Setting.—The ED of the Massachusetts General Hospital, Boston, Mass.

Design and Outcome Measures.—Evaluation of physician satisfaction, turnaround time (TAT), and ED LOS before and after implementation of a POCT laboratory. ED LOS was measured by patient chart audits. TAT was assessed by manual and computer audits. Clinician satisfaction surveys measured satisfaction with test TAT and test accuracy.

Results.—Blood glucose, urine human chorionic gonadotropin, urine dipstick …