The Laboratory Testing Workflow Integration Profile establishes the continuity and integrity of clinical laboratory testing and observation data inside a healthcare institution. It covers the workflow related to tests performed by the clinical laboratories of the institution, for both identified orders and  unknown orders, related to both identified patients and unidentified or misidentified patients.  This profiles replaces the two former profiles LSWF and LIR, which are kept in the LAB-TF release 2 for backward compatibility only. The profile involves a set of transactions, to maintain the consistency of ordering and patient information, to track the specimen collection and specimen acceptance and to deliver the laboratory  results at various steps of validation.   