This Implementation Guide defines the use of FHIR resources to convey measurements and supporting data from acute care point-of-care medical devices (PoCD) to receiving systems for electronic medical records, clinical decision support, and medical data archiving for aggregate quality measurement and research purposes. It could be considered "deep metadata for device observations". Key goals include supplementing the measurement values with full provenance for traceability, and with a further details of device architecture and attributes such as calibration history, battery state than is provided for in a FHIR Observation resource. Other related implementation guides focus on home-based personal health devices, and physiological and technical alerts from medical devices.