Physician goals and laboratory test turnaround times. A College of American Pathologists Q-Probes study of 2763 clinicians and 722 institutions.

Abstract

Laboratory test turnaround times (TATs) for emergency department patients were studied in 722 institutions using Q-Probes, a quality improvement program of the College of American Pathologists. The medians of the TATs required by 2763 clinicians were 10 minutes for PO2, 20 minutes for hemoglobin, and 30 minutes for potassium and glucose measurements. Surgeons had the shortest TAT requirements for hemoglobin, potassium, and glucose measurements, whereas emergency department physicians had the shortest requirements for PO2. The measured TATs of most hemoglobin and potassium determinations did not meet clinician goals. In contrast to laboratorians, the majority of clinicians defined a TAT start time as test ordering, and a TAT ending time as result reporting. We recommend laboratorians and clinicians mutually agree on the definition of TAT, jointly develop timeliness goals, and together improve TAT performance to fulfill these goals.

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