The impact of selective laboratory evaluation on utilization of laboratory resources and patient care in a level-I trauma center

American Journal of Surgery
U B ChuJ J Tepas

Abstract

Routine laboratory evaluation of preoperative patients has not been shown to be cost effective when a detailed history and physical examination are performed. However, since such a detailed history is not possible in trauma patients, the time-honored approach has been for laboratory evaluation to be protocol driven. The cost-benefit ratio of this practice has never been evaluated. Trauma patients who underwent routine laboratory evaluation (n = 552; group I) were compared with patients who had laboratory evaluation based on clinical need (n = 603; group II). A concurrent review of each case in group II was conducted every day while a retrospective review of charts was conducted for patients in group I to determine patient care issues and identify abnormal trauma center test results. The number of patients with laboratory tests decreased from 97% in group I to 27% in group II (P < 0.0001). Positive chemistry profiles increased (55% versus 92%; P < 0.0001) as did coagulation profiles (8% versus 33%; P < 0.0001). There were no differences in the percentage of patients receiving intervention based on laboratory data (7% in group I versus 8% in group II). No adverse effect on patient care was identified as a result of absent laborat...Continue Reading

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