Abstract: A system for reporting medical information to healthcare provider users may require users to acknowledge receipt of information. Information may be sent using a secure instant messaging (SIM) protocol, and users may acknowledge receipt, e.g., by sending a message, or clicking on a uniform resource locator (URL) or button included in the information. Unacknowledged information may be re-sent at designated time intervals, and may have different levels of urgency indicated in the message. Acknowledgement may be tracked by the system, e.g., by recording the user and timestamp of acknowledgement. Feeds or syndications (e.g., RSS, RDF, Atom, etc.) may be used to provide medical information, allowing users to subscribe to feeds for one or more patients. Feeds may be continuously aggregated and updated with the most recent information for each of the patients.