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The APPRAISE-HRI is a mobile health app intended to provide a means for military healthcare providers to screen U.S. Service members for hemorrhage risk after a physically traumatic event and stratify casualties who need immediate attention and emergency evacuation from those who are injured but may not be at risk for hemorrhage. The APPRAISE-HRI is not intended to diagnose or direct treatment. Rather, it is intended to provide situational awareness and inform clinical management of potentially hemorrhagic casualties by identifying those at the greatest risk of hemorrhage.

The Automated Processing of the Physiological Registry for Assessment of Injury Severity (APPRAISE)-Hemorrhage Risk Index (HRI) is an Android application developed by the U.S. Army Medical Research and Development Command (USAMRDC) that uses vital-sign data collected from a trauma patient to provide a risk score that stratifies the patient's risk of hemorrhage. When the application runs, heart rate (HR), systolic blood pressure (SBP), and diastolic blood pressure (DBP) vital-sign data are collected from an external monitor [currently only the ZOLL Propaq M (K202375) is supported]. The ZOLL Propaq M monitor connects via Bluetooth with the Android platform running the APPRAISE-HRI application. The APPRAISE-HRI application continuously pulls data from the ZOLL Propaq M monitor to gather the required vital signs (HR, SBP, and DBP) and then runs the hemorrhage risk stratification algorithm to generate an output every one minute. Once the vital-sign data from the ZOLL Propaq M monitor are transferred, the APPRAISE-HRI provides a stratification of hemorrhage into three Risk Level categories: Low (I), Average (II), or High (II). The APPRAISE-HRI application continuously displays both the input vital signs (HR, SBP, and DBP) and the Risk Level score to the caregiver to provide situational awareness and to inform clinical management of potentially hemorrhagic casualties by identifying those at the greatest risk of hemorrhage.