The Query for Existing Data Profile (QED) supports dynamic queries for clinical data, , including vital signs, problems, medications, immunizations, diagnostic results, procedures and visit history. A wide variety of systems often need access to dynamic clinical information stored and maintained in an EMR system or other clinical data repository. This profile makes the information widely available to other systems within and across enterprises to support provision of better clinical care. The information made available by this profile can be used to support clinical care, quality reporting, financial transactions, public health reporting, clinical trials, drug interaction checking, and patient qualification for various protocols. 