Abstract: A method of assigning an additional test to an existing aliquot sample tube or to a primary sample tube in a laboratory automation system is presented. The laboratory automation system comprises a workflow control unit and analytical laboratory devices in communication with the workflow control unit. The method comprises receiving an additional test request for the existing aliquot sample tube after processing of the existing aliquot sample tube has started, determining if the existing aliquot sample tube is at a retrievable target, waiting until the existing aliquot sample tube reaches a retrievable target if not at a retrievable target, determining if an aliquot timeout has occurred once the existing aliquot sample tube is at a retrievable target, reassigning the addition test to the primary sample tube if an aliquot timeout has occurred, and performing the additional test from the existing aliquot sample tube if no aliquot timeout has occurred.

Abstract: A method of routing test samples during periods of laboratory disruption in a laboratory system is disclosed. The method comprises determining that a laboratory device is unavailable, masking a target laboratory device so that test samples are not sent to the target laboratory device and test samples cannot be retrieved from the target laboratory device, rerouting test samples from the target laboratory device to a buffer, calculating a new laboratory workflow after the laboratory device becomes available, unmasking the target laboratory device after the new laboratory workflow is calculated, and retrieving the test samples from buffer and sending the test samples to the target laboratory device.