Information systems have introduced efficient ways to improve the quality of life of citizens in several areas, including health. The use of computers in this area has been spreading into new ways that enable the optimization of provided healthcare services. In Angola there still is an incipient use of Information Systems applied to Healthcare. It was identified the lack of an efficient way to access Medical Emergency Services in Angola. We present a web-based information system to guide and manage this access, responding to the need of improvement and optimization of the access to emergency services, enabling health authorities a greater degree of knowledge about patients referred to them and a more balanced use of its resources. Our system encourages coordination and collaboration among providers of healthcare services, providing a feature of triage and referral of users according to the diagnosis and hospital availability. Some aspects of this system are highlighted.