Fig. 3From: Impact of add-on laboratory testing at an academic medical center: a five year retrospective studyTiming of Add-on Orders. a Timing of add-on orders relative to original specimen collect time. The data is broken down into orders originating from emergency department (ED), inpatient units (including intensive care units), outpatient clinics, and all data. b Time of day add-on order was placed broken into one hour intervals. c Day of week add-on order was placedBack to article page