Currently, blockchain technology plays a vital role in providing security and trust management in numerous applications such as cryptocurrency. Data monitoring and management in real-time applications require high flexibility and accuracy. Obtaining the necessary information in a timely manner during emergency situations is crucial, as the failure to do so could have fatal consequences. The Intelligent Ambulance Vehicle (IAV) allows the emergency crew to report the patient status through an IoT network, including mobile networks and medical diagnosis equipment. An intelligent ambulance functions as an autonomous network that necessitates high-speed data processing with minimal computations. Implementing trust management through the Client Server Model introduces additional delays to the network. This paper proposes the integration of Internet of Things (IoT), vehicle-to-vehicle (V2V) communication, and Electronic Healthcare (EH) systems to develop an efficient emergency handling system. A software implementation of a decentralized emergency management (DEM) application based on blockchain process provides trust, availability, and transparency.