This paper presents a comprehensive IoT-based architecture for healthcare facilities. The architecture proposes the use of IoT devices in ways that improve the efficiency of the healthcare facility and enhance the quality of care offered. The architecture spans the following areas: Lab tests administration, Patient Monitoring, Ambulance Services, and Meal quality. Four types of IoT devices are presented; one for each of the aforementioned areas. The system includes a central management system that connects the IoT devices and allows for integration with existing IT systems in the health facility. The paper presents the hardware design and the data model needed for each of these IoT devices. It also presents the use cases for these devices and how they can benefit patients as well as improve the efficiency of the healthcare facility.