Summary
eHealth describes healthcare services which are supported by digital processes, communication or technology such as electronic prescribing, Telehealth, or Electronic Health Records (EHRs). The use of electronic processes in healthcare dated back to at least the 1990s. Usage of the term varies as it covers not just "Internet medicine" as it was conceived during that time, but also "virtually everything related to computers and medicine". A study in 2005 found 51 unique definitions. Some argue that it is interchangeable with health informatics with a broad definition covering electronic/digital processes in health while others use it in the narrower sense of healthcare practice using the Internet. It can also include health applications and links on mobile phones, referred to as mHealth or m-Health. The term can encompass a range of services or systems that are at the edge of medicine/healthcare and information technology, including: Electronic health record: enabling the communication of patient data between different healthcare professionals (GPs, specialists etc.); Computerized physician order entry: a means of requesting diagnostic tests and treatments electronically and receiving the results ePrescribing: access to prescribing options, printing prescriptions to patients and sometimes electronic transmission of prescriptions from doctors to pharmacists Clinical decision support system: providing information electronically about protocols and standards for healthcare professionals to use in diagnosing and treating patients Telemedicine: physical and psychological diagnosis and treatments at a distance, including telemonitoring of patients functions and videoconferencing; Telerehabilitation: providing rehabilitation services over a distance through telecommunications. Telesurgery: use robots and wireless communication to perform surgery remotely. Teledentistry: exchange clinical information and images over a distance. Consumer health informatics: use of electronic resources on medical topics by healthy individuals or patients; Health knowledge management: e.
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