1. April 4, 2005François Macary - AGFA Healthcare IT 1 Identifiers for work items in Laboratory Scheduled Work Flow (LSWF) and Laboratory Device Automation (LDA) Request, Order, Work Order, WOS (Work Order Step)

2. LSWF: Transactions LAB-1, LAB-2 and LAB-3: Request = Placer Group Number Battery Placer & Filler Order Numbers a CBC (complete blood count) a creatinine clearance The physician places a lab request. The Order Placer allocates the unique Id 123 to this request consisting of: Laboratory request 123 12346 12345 Placer Order Number (ordered battery) Order Placer allocates an Identifier to each ordered battery Order Filler allocates an Identifier to each accepted battery Filler Order Number (accepted battery) F101 F102 accepted battery F101ordered battery 12345

3. The Order Filler places a Work Order for the CBC to the Automation Manager. It uses its accepted battery number F101 to identify the Work Order, and propagates the request id 123 into the Placer Group Number: OBR-2 = F101 (Work Order Identifier) ORC-4 = 123 (Lab Request Identifier) The Order Filler places two Work Orders for the creatinine clearance, one for the serum creatinine, identified F1021 and one for the urine creatinine, identified F1022: Work Order for serum creatinine: ORC-4 = 123, OBR-2 = F1021 Work Order for urine creatinine: ORC-4 = 123, OBR-2 = F1022 LSWF: Transactions LAB-4 and LAB-5: The Order Filler builds its Work Order identifiers according to its own business rules, and propagates the lab request identifier to the Automation Manager.

4. The Automation Manager sends an Analytical Work Order Step to the chemistry analyzer for the serum creatinine. It uses its Work Under number F1021 to identify the Work Order, and appends a suffix to identify the step. The request id 123 is propagated to the analyzer in the Placer Group Number: OBR-2 = F1021-1 (AWOS Identifier) ORC-4 = 123 (Lab Request Identifier) LDA: Transactions LAB-21 to LAB-26: The Automation Manager builds its WOS identifiers according to its own business rules, and propagates the lab request identifier to the Automation Manager.